Hecho general: 58580 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 58580 is an uninteresting number.
Trivia: 58580 is a boring number.
Fecha histórica: May 20th is the day in 1916 that the Saturday Evening Post publishes its first cover with a Norman Rockwell painting (Boy with Baby Carriage).