2503

This number is a prime.

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+ The only 4-digit Friedman number that is prime, i.e., 2503 = 50^2 + 3. [Loungrides]

+ The largest prime that can be expressed as the sum of three different 3-digit zeroless palindromic primes, i.e., 2503 = 787 + 797 + 919. [Loungrides]

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