automorphic number

automorphic number
A number whose decimal representation of its square ends in itself.

5 is an automorphic number because 5 = 25, which ends in 5.


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  • automorphic — adjective a) Describing a mineral, in an igneous rock, that is bounded by its own crystal face; euhedral, idiomorphic b) Describing a number whose square ends in the number itself; circular …   Wiktionary

  • 25 (number) — ← 24 26 → 25 ← 20 21 22 23 24 25 26 …   Wikipedia

  • 5 (number) — This article discusses the number five. For the year 5 AD, see 5. For other uses of 5, see 5 (disambiguation). 5 −1 0 1 2 3 4 5 6 7 8 9 → List of numbers Integers …   Wikipedia

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