25902313 has 2 divisors, whose sum is σ = 25902314. Its totient is φ = 25902312.

The previous prime is 25902287. The next prime is 25902323. The reversal of 25902313 is 31320952.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18045504 + 7856809 = 4248^2 + 2803^2 .

It is a cyclic number.

It is not a de Polignac number, because 25902313 - 2¹⁷ = 25771241 is a prime.

It is not a weakly prime, because it can be changed into another prime (25902323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12951156 + 12951157.

It is an arithmetic number, because the mean of its divisors is an integer number (12951157).

Almost surely, 2^25902313 is an apocalyptic number.

It is an amenable number.

25902313 is a deficient number, since it is larger than the sum of its proper divisors (1).

25902313 is an equidigital number, since it uses as much as digits as its factorization.

25902313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 25902313 is about 5089.4315006688. The cubic root of 25902313 is about 295.8781189531.

The spelling of 25902313 in words is "twenty-five million, nine hundred two thousand, three hundred thirteen".