56511650056 has 16 divisors (see below), whose sum is σ = 105973530300. Its totient is φ = 28252041984.

The previous prime is 56511650047. The next prime is 56511650071. The reversal of 56511650056 is 65005611565.

It can be written as a sum of positive squares in 2 ways, for example, as 56485127556 + 26522500 = 237666^2 + 5150^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408885 + ... + 529348.

Almost surely, 2^56511650056 is an apocalyptic number.

It is an amenable number.

56511650056 is a deficient number, since it is larger than the sum of its proper divisors (49461880244).

56511650056 is a wasteful number, since it uses less digits than its factorization.

56511650056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945768 (or 945764 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 56511650056 in words is "fifty-six billion, five hundred eleven million, six hundred fifty thousand, fifty-six".