Fatto generale: 53676 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 53676 is a boring number.
Trivia: 53676 is an unremarkable number.
Data storica: December 16th is the day in 1497 that Vasco da Gama rounds the Cape of Good Hope, the point where Bartolomeu Dias had previously turned back to Portugal.