25651256 has 16 divisors (see below), whose sum is σ = 50187600. Its totient is φ = 12267904.

The previous prime is 25651247. The next prime is 25651259. The reversal of 25651256 is 65215652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25651259) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 69521 + ... + 69888.

It is an arithmetic number, because the mean of its divisors is an integer number (3136725).

Almost surely, 2^25651256 is an apocalyptic number.

It is an amenable number.

25651256 is a deficient number, since it is larger than the sum of its proper divisors (24536344).

25651256 is a wasteful number, since it uses less digits than its factorization.

25651256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139438 (or 139434 counting only the distinct ones).

The product of its digits is 18000, while the sum is 32.

The square root of 25651256 is about 5064.7069016874. The cubic root of 25651256 is about 294.9190853443.

It can be divided in two parts, 25651 and 256, that multiplied together give a palindrome (6566656).

The spelling of 25651256 in words is "twenty-five million, six hundred fifty-one thousand, two hundred fifty-six".