25971902 has 16 divisors (see below), whose sum is σ = 42602112. Its totient is φ = 11776920.

The previous prime is 25971887. The next prime is 25971919. The reversal of 25971902 is 20917952.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9893 + ... + 12239.

It is an arithmetic number, because the mean of its divisors is an integer number (2662632).

Almost surely, 2^25971902 is an apocalyptic number.

25971902 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25971902 is a deficient number, since it is larger than the sum of its proper divisors (16630210).

25971902 is a wasteful number, since it uses less digits than its factorization.

25971902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2863.

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

The square root of 25971902 is about 5096.2635332173. The cubic root of 25971902 is about 296.1428501507.

The spelling of 25971902 in words is "twenty-five million, nine hundred seventy-one thousand, nine hundred two".