Fatto generale: 56977 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 56977 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 56977 is a boring number.
Data storica: December 30th is the day in 2006 that the Indonesian passenger ferry MV Senopati Nusantara sinks in a storm, resulting in at least 400 deaths.