25988256 has 96 divisors (see below), whose sum is σ = 86647680. Its totient is φ = 7423488.

The previous prime is 25988243. The next prime is 25988273. The reversal of 25988256 is 65288952.

25988256 is a `hidden beast` number, since 2 + 598 + 8 + 2 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3900 + ... + 8196.

It is an arithmetic number, because the mean of its divisors is an integer number (902580).

Almost surely, 2^25988256 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 25988256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43323840).

25988256 is an abundant number, since it is smaller than the sum of its proper divisors (60659424).

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

25988256 is a wasteful number, since it uses less digits than its factorization.

25988256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4323 (or 4309 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 25988256 is about 5097.8677895763. The cubic root of 25988256 is about 296.2049955670.

It can be divided in two parts, 25988 and 256, that added together give a square (26244 = 162²).

The spelling of 25988256 in words is "twenty-five million, nine hundred eighty-eight thousand, two hundred fifty-six".