treinta y siete
That is the correct spelling of thirty-seven (37).
The currency $35 is "thirty-five dollars."
37= thirty-seven
One hundred thirty-seven
Thirty-seven thousand.
The number 937 is "nine hundred (and) thirty-seven."
The number 737 is "seven hundred thirty-seven." The aircraft, the Boeing 737, is spoken "Boeing seven thirty-seven."
'37' is 'Thirty seven'. Two separate words.
The number 537 is "five hundred thirty-seven" (also five hundred and thirty-seven).
The number 31739 is "thirty-one thousand seven hundred thirty-nine."
Seven hundred and thirty-eight
Seven- Sieteseven in spanish is spelled like this: siete