56722859457 has 32 divisors (see below), whose sum is σ = 84990850560. Its totient is φ = 33351504000.

The previous prime is 56722859377. The next prime is 56722859477. The reversal of 56722859457 is 75495822765.

It is not a de Polignac number, because 56722859457 - 2⁷ = 56722859329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56722859457.

It is not an unprimeable number, because it can be changed into a prime (56722859477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125082 + ... + 359292.

It is an arithmetic number, because the mean of its divisors is an integer number (2655964080).

Almost surely, 2^56722859457 is an apocalyptic number.

It is an amenable number.

56722859457 is a deficient number, since it is larger than the sum of its proper divisors (28267991103).

56722859457 is a wasteful number, since it uses less digits than its factorization.

56722859457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234445.

The product of its digits is 42336000, while the sum is 60.

The spelling of 56722859457 in words is "fifty-six billion, seven hundred twenty-two million, eight hundred fifty-nine thousand, four hundred fifty-seven".