WE CLAIM:
1. A lithographic printing plate precursor comprising:
an image-recording layer on an aluminum support,
wherein the image-recording layer contains a polymerization initiator, an infrared absorber, a polymer particle, and a polymerizable compound, and the polymerizable compound has a) a molecular weight of 1,500 to 3,000, b) a double bond equivalent of 200 or less, and c) a CLog P of 9 or less.
2. The lithographic printing plate precursor according to claim 1,
wherein the CLog P of the polymerizable compound is 5 or less.
3. The lithographic printing plate precursor according to claim 1 or 2,
wherein the polymerizable compound is a polymerizable compound having a urethane bond.
4. The lithographic printing plate precursor according to any one of claims 1 to 3,
wherein the image-recording layer further contains a polymerizable compound different from the above-described polymerizable compound.
5. The lithographic printing plate precursor according to claim 4,
wherein the polymerizable compound different from the above-described polymerizable compound is a polymerizable compound having an acrylic group or a methacrylic group.
6. The lithographic printing plate precursor according to claim 4 or 5,
wherein a molecular weight of the polymerizable compound different from the above-described polymerizable compound is 1,500 or less.
7. The lithographic printing plate precursor according to any one of claims 1 to 6,
wherein the polymer particle is a polymer particle comprising a monomer unit derived from a styrene compound and/or a monomer unit derived from a (meth)acrylonitrile compound.

8. The lithographic printing plate precursor according to claim 7,
wherein the polymer particle further comprises a monomer unit derived from a poly(ethylene glycol) alkyl ether methacrylate compound.
9. The lithographic printing plate precursor according to any one of claims 1 to 8,
wherein the image-recording layer further contains a borate compound.
10. The lithographic printing plate precursor according to any one of claims 1 to 9,
wherein the image-recording layer further contains an acid color developing agent.
11. The lithographic printing plate precursor according to any one of claims 1 to 10 which is for on-machine development.
12. A method for producing a lithographic printing plate comprising:
a step of image-exposing the lithographic printing plate precursor according to any one of claims 1 to 11; and
a step of removing a non-exposed portion of the image-recording layer of the lithographic printing plate precursor using at least any of printing ink or dampening water.
13. A method for producing a lithographic printing plate comprising:
a step of image-exposing the lithographic printing plate precursor according to any one of claims 1 to 10; and
a step of removing a non-exposed portion of the image-recording layer of the lithographic printing plate precursor using a developer having a pH of 2 to 11.