25 is the sum of the singledigit odd natural numbers 1, 3, 5, 7 and 9, the first five odd natural numbers. 25 is a centered octagonal number, a centered square number, and an automorphic number. 25 percent (%) is equal to 1 / 4. It is the smallest base 10 Friedman number as it …10/16/2001 · November 25 is the 329th day of the year (330th in leap years) in the Gregorian calendar. 36 days remain until the end of the year. Events. 571 BC – Servius Tullius, king of Rome, celebrates the first of his three ...
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