56521700534546 has 16 divisors (see below), whose sum is σ = 91322234244864. Its totient is φ = 26081810489424.

The previous prime is 56521700534543. The next prime is 56521700534587. The reversal of 56521700534546 is 64543500712565.

It is a super-2 number, since 2×56521700534546² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56521700534543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213540980 + ... + 213805503.

It is an arithmetic number, because the mean of its divisors is an integer number (5707639640304).

Almost surely, 2^{56521700534546} is an apocalyptic number.

56521700534546 is a deficient number, since it is larger than the sum of its proper divisors (34800533710318).

56521700534546 is a wasteful number, since it uses less digits than its factorization.

56521700534546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427351585.

The product of its (nonzero) digits is 15120000, while the sum is 53.

The spelling of 56521700534546 in words is "fifty-six trillion, five hundred twenty-one billion, seven hundred million, five hundred thirty-four thousand, five hundred forty-six".