Bar 56, I'd use 4 on the G and 2321 for the lower ones. As Ian says, these are timed.In bars 58 and 60, they are incorrectly notated and should be 32nds (again, in time). Try them with the left hand as they are actually part of that musical line. The opening notes of bars 59 and 61 are ornaments so play in free time, probably before the beat - though without knowing the piece or what it is it's difficult to be definitive - use your judgment.
Hi j_menz, Are you sure they should be 32nds? Each bar contains 6 eighth notes. There are 4 eighth notes and 4 16th's (2 eighth notes) in bar 58.