5577557857 has 2 divisors, whose sum is σ = 5577557858. Its totient is φ = 5577557856.

The previous prime is 5577557831. The next prime is 5577557879. The reversal of 5577557857 is 7587557755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5547866256 + 29691601 = 74484^2 + 5449^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5577557857 is a prime.

It is a super-2 number, since 2×5577557857² = 62218303296364864898, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5577557795 and 5577557804.

It is not a weakly prime, because it can be changed into another prime (5577551857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2788778928 + 2788778929.

It is an arithmetic number, because the mean of its divisors is an integer number (2788778929).

Almost surely, 2^5577557857 is an apocalyptic number.

It is an amenable number.

5577557857 is a deficient number, since it is larger than the sum of its proper divisors (1).

5577557857 is an equidigital number, since it uses as much as digits as its factorization.

5577557857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60025000, while the sum is 61.

The square root of 5577557857 is about 74683.0493284788. The cubic root of 5577557857 is about 1773.4326288887.

The spelling of 5577557857 in words is "five billion, five hundred seventy-seven million, five hundred fifty-seven thousand, eight hundred fifty-seven".