56505220256 has 48 divisors (see below), whose sum is σ = 111702374784. Its totient is φ = 28136615424.

The previous prime is 56505220241. The next prime is 56505220319. The reversal of 56505220256 is 65202250565.

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 7 ways as a sum of consecutive naturals, for example, 8229881 + ... + 8236743.

It is an arithmetic number, because the mean of its divisors is an integer number (2327132808).

Almost surely, 2^56505220256 is an apocalyptic number.

It is an amenable number.

56505220256 is a deficient number, since it is larger than the sum of its proper divisors (55197154528).

56505220256 is a wasteful number, since it uses less digits than its factorization.

56505220256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7893 (or 7885 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 56505220256 in words is "fifty-six billion, five hundred five million, two hundred twenty thousand, two hundred fifty-six".