56577203387 has 8 divisors (see below), whose sum is σ = 58405450752. Its totient is φ = 54749154600.

The previous prime is 56577203377. The next prime is 56577203437. The reversal of 56577203387 is 78330277565.

It is a happy number.

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 56577203387 - 2⁶ = 56577203323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56577203377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 718058 + ... + 792944.

It is an arithmetic number, because the mean of its divisors is an integer number (7300681344).

Almost surely, 2^56577203387 is an apocalyptic number.

56577203387 is a deficient number, since it is larger than the sum of its proper divisors (1828247365).

56577203387 is a wasteful number, since it uses less digits than its factorization.

56577203387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99289.

The product of its (nonzero) digits is 7408800, while the sum is 53.

The spelling of 56577203387 in words is "fifty-six billion, five hundred seventy-seven million, two hundred three thousand, three hundred eighty-seven".