# Eighty-five

**Eighty-five**(85, LXXXV) is the natural number following eighty-four and preceeding eighty-six.

- Hexadecimal: 55
- Binary: 01010101
- Factors: 1, 5, 17, 85.
- Factorization:
- Ordinal number: eighty-fifth

- the atomic number of astatine (At)
- the model number of SU-85
- the number of the French department Vendée
- the designation of Interstate 85, a freeway that runs from Alabama to Virginia; the European route E85 from Klaipéda to Alexandropoúli
- the year AD 85 or AD 1985.