Hecho general: 53811 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 53811 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 53811 is an unremarkable number.
Fecha histórica: April 30th is the day in 1993 that Monica Seles is stabbed by Günter Parche, an obsessed fan, during a quarterfinal match of the 1993 Citizen Cup in Hamburg, Germany.