Fatto generale: 54219 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 54219 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 54219 is an unremarkable number.
Data storica: June 11th is the day in 1982 that the Sentosa Musical Fountain was officially opened as part of the second phase of construction on the island of Sentosa, Singapore.