25879656 has 64 divisors (see below), whose sum is σ = 71124480. Its totient is φ = 7782080.

The previous prime is 25879631. The next prime is 25879663. The reversal of 25879656 is 65697852.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 43795 + ... + 44381.

It is an arithmetic number, because the mean of its divisors is an integer number (1111320).

Almost surely, 2^25879656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25879656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35562240).

25879656 is an abundant number, since it is smaller than the sum of its proper divisors (45244824).

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

25879656 is a wasteful number, since it uses less digits than its factorization.

25879656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774 (or 770 counting only the distinct ones).

The product of its digits is 907200, while the sum is 48.

The square root of 25879656 is about 5087.2051265896. The cubic root of 25879656 is about 295.7918246507.

It can be divided in two parts, 258796 and 56, that added together give a palindrome (258852).

The spelling of 25879656 in words is "twenty-five million, eight hundred seventy-nine thousand, six hundred fifty-six".