Fait général: 54239 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 54239 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Culture générale: 54239 is a boring number.
Date historique: July 1st is the day in 1858 that Joint reading of Charles Darwin and Alfred Russel Wallace's papers on evolution to the Linnean Society.