Fatto generale: 53913 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 53913 is an unremarkable number.
Trivia: 53913 is an unremarkable number.
Data storica: August 10th is the day in 1270 that Yekuno Amlak takes the imperial throne of Ethiopia, restoring the Solomonic dynasty to power after a 100-year Zagwe interregnum.