56577221801 has 8 divisors (see below), whose sum is σ = 58468612608. Its totient is φ = 54689976000.

The previous prime is 56577221797. The next prime is 56577221821. The reversal of 56577221801 is 10812277565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56577221801 - 2² = 56577221797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56577221821) 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 7 ways as a sum of consecutive naturals, for example, 1008485 + ... + 1063106.

It is an arithmetic number, because the mean of its divisors is an integer number (7308576576).

Almost surely, 2^56577221801 is an apocalyptic number.

It is an amenable number.

56577221801 is a deficient number, since it is larger than the sum of its proper divisors (1891390807).

56577221801 is a wasteful number, since it uses less digits than its factorization.

56577221801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072503.

The product of its (nonzero) digits is 235200, while the sum is 44.

The spelling of 56577221801 in words is "fifty-six billion, five hundred seventy-seven million, two hundred twenty-one thousand, eight hundred one".