Fatto generale: 19855 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 19855 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 19855 is an uninteresting number.
Data storica: May 11th is the day in 1967 that Andreas Papandreou, Greek economist and socialist politician, is imprisoned in Athens by the Greek military junta.