256600525071 has 16 divisors (see below), whose sum is σ = 373611535488. Its totient is φ = 155359466400.

The previous prime is 256600525039. The next prime is 256600525081. The reversal of 256600525071 is 170525006652.

It is not a de Polignac number, because 256600525071 - 2⁵ = 256600525039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256600525081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3866685 + ... + 3932486.

It is an arithmetic number, because the mean of its divisors is an integer number (23350720968).

Almost surely, 2^256600525071 is an apocalyptic number.

256600525071 is a deficient number, since it is larger than the sum of its proper divisors (117011010417).

256600525071 is a wasteful number, since it uses less digits than its factorization.

256600525071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7800182.

The product of its (nonzero) digits is 126000, while the sum is 39.

The spelling of 256600525071 in words is "two hundred fifty-six billion, six hundred million, five hundred twenty-five thousand, seventy-one".