25958256 has 40 divisors (see below), whose sum is σ = 70590720. Its totient is φ = 8197056.

The previous prime is 25958249. The next prime is 25958263. The reversal of 25958256 is 65285952.

It is an interprime number because it is at equal distance from previous prime (25958249) and next prime (25958263).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13320 + ... + 15143.

It is an arithmetic number, because the mean of its divisors is an integer number (1764768).

Almost surely, 2^25958256 is an apocalyptic number.

It is an amenable number.

25958256 is an abundant number, since it is smaller than the sum of its proper divisors (44632464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25958256 is a wasteful number, since it uses less digits than its factorization.

25958256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28493 (or 28487 counting only the distinct ones).

The product of its digits is 216000, while the sum is 42.

The square root of 25958256 is about 5094.9245332978. The cubic root of 25958256 is about 296.0909752014.

The spelling of 25958256 in words is "twenty-five million, nine hundred fifty-eight thousand, two hundred fifty-six".