Toner

A toner, comprising:

• a toner particle having a core-shell structure, the toner particle comprising a core and a shell;
• the core comprising a binder resin and a colorant;
• the colorant being a hydrophobized magnetic material having a surface that is subjected to hydrophobizing treatment with a silane coupling agent;
• the toner comprising a crystalline material;
• and
• the shell comprising an amorphous thermoplastic resin, wherein
• 2.50≤SPa−SPc≤4.50 when SPc (J/cm3)0.5 is an SP value of the crystalline material calculated by the Fedors method and SPa (J/cm3)0.5 is an SP value of the amorphous thermoplastic resin calculated by the Fedors method,
• 1.0≤S2≤20.0 when S2(%) is a ratio of an area occupied by the crystalline material per area of the toner surface observed by a scanning electron microscope (SEM) after the toner has been subjected to ruthenium staining that treats the toner in an atmosphere of RuO4 (ruthenium tetroxide) gas having 500 Pa for 15 minutes, and
• in a spectrum of Si obtained based on a total electron yield method (TEY) using a near-edge X-ray absorption fine structure (NEXAFS) the hydrophobized magnetic material has a peak A in a range of 1844.4 to 1844.8 eV, and a peak B in a range of 1846.1 to 1846.6 eV, and IA/(IA+IB)/MSi is 47-55 where IA represents an area of the peak A, IB represents an area of the peak B, and MSi represents the number of moles of Si derived from the silane compound contained in 1 g of the hydrophobized magnetic material.