256056603525 has 36 divisors (see below), whose sum is σ = 461372157792. Its totient is φ = 135745756320.

The previous prime is 256056603443. The next prime is 256056603571. The reversal of 256056603525 is 525306650652.

256056603525 is a `hidden beast` number, since 2 + 5 + 60 + 5 + 6 + 60 + 3 + 525 = 666.

It is not a de Polignac number, because 256056603525 - 2¹⁷ = 256056472453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3369699 + ... + 3444848.

It is an arithmetic number, because the mean of its divisors is an integer number (12815893272).

Almost surely, 2^256056603525 is an apocalyptic number.

256056603525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

256056603525 is a deficient number, since it is larger than the sum of its proper divisors (205315554267).

256056603525 is a wasteful number, since it uses less digits than its factorization.

256056603525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6814730 (or 6814722 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 45.

The spelling of 256056603525 in words is "two hundred fifty-six billion, fifty-six million, six hundred three thousand, five hundred twenty-five".