Fait général: 55494 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 55494 is a boring number.
Culture générale: 55494 is an unremarkable number.
Date historique: December 8th is the day in 1987 that Frank Vitkovic shoots and kills eight people at the Australia Post building in Melbourne, before jumping to his death.