25951856 has 40 divisors (see below), whose sum is σ = 57912960. Its totient is φ = 11035584.

The previous prime is 25951841. The next prime is 25951879. The reversal of 25951856 is 65815952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14735 + ... + 16401.

It is an arithmetic number, because the mean of its divisors is an integer number (1447824).

Almost surely, 2^25951856 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 25951856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28956480).

25951856 is an abundant number, since it is smaller than the sum of its proper divisors (31961104).

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

25951856 is a wasteful number, since it uses less digits than its factorization.

25951856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821 (or 1815 counting only the distinct ones).

The product of its digits is 108000, while the sum is 41.

The square root of 25951856 is about 5094.2964185450. The cubic root of 25951856 is about 296.0666394884.

The spelling of 25951856 in words is "twenty-five million, nine hundred fifty-one thousand, eight hundred fifty-six".