56577742685 has 4 divisors (see below), whose sum is σ = 67893291228. Its totient is φ = 45262194144.

The previous prime is 56577742679. The next prime is 56577742691. The reversal of 56577742685 is 58624777565.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58624777565 = 5 ⋅11724955513.

It is an interprime number because it is at equal distance from previous prime (56577742679) and next prime (56577742691).

It can be written as a sum of positive squares in 2 ways, for example, as 30080739844 + 26497002841 = 173438^2 + 162779^2 .

It is a cyclic number.

It is not a de Polignac number, because 56577742685 - 2⁶ = 56577742621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5657774264 + ... + 5657774273.

It is an arithmetic number, because the mean of its divisors is an integer number (16973322807).

Almost surely, 2^56577742685 is an apocalyptic number.

It is an amenable number.

56577742685 is a deficient number, since it is larger than the sum of its proper divisors (11315548543).

56577742685 is a wasteful number, since it uses less digits than its factorization.

56577742685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11315548542.

The product of its digits is 98784000, while the sum is 62.

The spelling of 56577742685 in words is "fifty-six billion, five hundred seventy-seven million, seven hundred forty-two thousand, six hundred eighty-five".