56511001522 has 16 divisors (see below), whose sum is σ = 89233097760. Its totient is φ = 26766808992.

The previous prime is 56511001511. The next prime is 56511001553. The reversal of 56511001522 is 22510011565.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 863838 + ... + 926950.

It is an arithmetic number, because the mean of its divisors is an integer number (5577068610).

Almost surely, 2^56511001522 is an apocalyptic number.

56511001522 is a deficient number, since it is larger than the sum of its proper divisors (32722096238).

56511001522 is a wasteful number, since it uses less digits than its factorization.

56511001522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86697.

The product of its (nonzero) digits is 3000, while the sum is 28.

The spelling of 56511001522 in words is "fifty-six billion, five hundred eleven million, one thousand, five hundred twenty-two".