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 …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 …
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