Fait général: 58857 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 58857 is a boring number.
Culture générale: 58857 is an uninteresting number.
Date historique: February 21st is the day in 1245 that Thomas, the first known Bishop of Finland, is granted resignation after confessing to torture and forgery.