256524562725 has 24 divisors (see below), whose sum is σ = 446442750240. Its totient is φ = 129612409920.

The previous prime is 256524562681. The next prime is 256524562817. The reversal of 256524562725 is 527265425652.

256524562725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 256524562725 - 2⁶ = 256524562661 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90007194 + ... + 90010043.

It is an arithmetic number, because the mean of its divisors is an integer number (18601781260).

Almost surely, 2^256524562725 is an apocalyptic number.

256524562725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

256524562725 is a deficient number, since it is larger than the sum of its proper divisors (189918187515).

256524562725 is a wasteful number, since it uses less digits than its factorization.

256524562725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180017269 (or 180017264 counting only the distinct ones).

The product of its digits is 10080000, while the sum is 51.

The spelling of 256524562725 in words is "two hundred fifty-six billion, five hundred twenty-four million, five hundred sixty-two thousand, seven hundred twenty-five".