25608256 has 28 divisors (see below), whose sum is σ = 53807868. Its totient is φ = 12050432.

The previous prime is 25608229. The next prime is 25608283. The reversal of 25608256 is 65280652.

It is an interprime number because it is at equal distance from previous prime (25608229) and next prime (25608283).

It can be written as a sum of positive squares in 2 ways, for example, as 14318656 + 11289600 = 3784^2 + 3360^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10681 + ... + 12856.

Almost surely, 2^25608256 is an apocalyptic number.

It is an amenable number.

25608256 is an abundant number, since it is smaller than the sum of its proper divisors (28199612).

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

25608256 is a wasteful number, since it uses less digits than its factorization.

25608256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23566 (or 23556 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 25608256 is about 5060.4600581370. The cubic root of 25608256 is about 294.7541991568.

It can be divided in two parts, 2560 and 8256, that added together give a square (10816 = 104²).

The spelling of 25608256 in words is "twenty-five million, six hundred eight thousand, two hundred fifty-six".