22453

This number is a prime.

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The smallest prime whose sum of squares of its digits at odd positions equals the same prime as the sum of squares of its digits at even positions: 22 + 42 + 32 = 22 + 52 = 29 [Gudipati]

Submitted: 2026-02-10 12:12:21;   Last Modified: 2026-04-18 15:31:11.
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