26
Cardinal	twenty-six
Ordinal	twenty-sixth
Factorization
Roman numeral	XXVI
Binary	11010
Hexadecimal	1A

Twenty-six is a composite number, its proper divisors being 1, 2, and 13.

In the classification of finite simple groups there are 26 sporadic groups.

Twenty-six is:

• The atomic number of iron.
• The number of letters in the English alphabet, if majuscules are not distinguished from minuscules.
• The designation of Interstate 26, a freeway that runs from South Carolina to North Carolina.
• Often the number of episodes in a Japanese anime series. For example, Cowboy Bebop, Outlaw Star and Trigun.
• The year AD 26.