56577554782 has 16 divisors (see below), whose sum is σ = 97413636960. Its totient is φ = 24141637728.

The previous prime is 56577554777. The next prime is 56577554809. The reversal of 56577554782 is 28745577565.

It is a happy number.

It is a super-2 number, since 2×56577554782² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56577554782.

It is a congruent number.

It is an unprimeable number.

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, 8820493 + ... + 8826904.

It is an arithmetic number, because the mean of its divisors is an integer number (6088352310).

Almost surely, 2^56577554782 is an apocalyptic number.

56577554782 is a deficient number, since it is larger than the sum of its proper divisors (40836082178).

56577554782 is a wasteful number, since it uses less digits than its factorization.

56577554782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17647635.

The product of its digits is 82320000, while the sum is 61.

The spelling of 56577554782 in words is "fifty-six billion, five hundred seventy-seven million, five hundred fifty-four thousand, seven hundred eighty-two".