256507424604 has 36 divisors (see below), whose sum is σ = 648409609120. Its totient is φ = 85500385920.

The previous prime is 256507424539. The next prime is 256507424633. The reversal of 256507424604 is 406424705652.

256507424604 is a `hidden beast` number, since 2 + 565 + 0 + 7 + 4 + 24 + 60 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-4 number, since 4×256507424604⁴ (a number of 47 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 256507424604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2314989 + ... + 2423259.

Almost surely, 2^256507424604 is an apocalyptic number.

It is an amenable number.

256507424604 is an abundant number, since it is smaller than the sum of its proper divisors (391902184516).

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

256507424604 is a wasteful number, since it uses less digits than its factorization.

256507424604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174090 (or 174085 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 45.

The spelling of 256507424604 in words is "two hundred fifty-six billion, five hundred seven million, four hundred twenty-four thousand, six hundred four".