Fatto generale: 50137 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 50137 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 50137 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: April 8th is the day in 1954 that a Royal Canadian Air Force Canadair Harvard collided with a Trans-Canada Airlines Canadair North Star over Moose Jaw, Saskatchewan, killing 37 people.