25902791 has 2 divisors, whose sum is σ = 25902792. Its totient is φ = 25902790.

The previous prime is 25902739. The next prime is 25902797. The reversal of 25902791 is 19720952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25902791 - 2¹⁴ = 25886407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25902797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12951395 + 12951396.

It is an arithmetic number, because the mean of its divisors is an integer number (12951396).

Almost surely, 2^25902791 is an apocalyptic number.

25902791 is a deficient number, since it is larger than the sum of its proper divisors (1).

25902791 is an equidigital number, since it uses as much as digits as its factorization.

25902791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 25902791 is about 5089.4784605105. The cubic root of 25902791 is about 295.8799389819.

The spelling of 25902791 in words is "twenty-five million, nine hundred two thousand, seven hundred ninety-one".