Fatto generale: 50511 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 50511 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 50511 is an uninteresting number.
Data storica: April 17th is the day in 2006 that Sami Hammad, a Palestinian suicide bomber, detonates an explosive device in Tel Aviv, killing 11 people and injuring 70.