What to put for pixel art PPU

I’m trying to build a 2d platformer using 32x32 tiles and a character sprite that is 45x48. I’m not sure what to put for the PPU or other possibly sprite import settings to get it to look right (e.g. the character sprite will stretch). I’m fine with the character just occupying 1.5 tiles or whatever, but I’m not sure the best way to do this. Should I just set the PPU to 1? Thanks

PPU = pixels per unit. One unit un Unity is the default length. If you want every tile to take up one unit set the PPU to 32. This means that every tile will snap to nice integer coordinates.