56807577 has 6 divisors (see below), whose sum is σ = 82055402. Its totient is φ = 37871712.

The previous prime is 56807567. The next prime is 56807581. The reversal of 56807577 is 77570865.

It can be written as a sum of positive squares in only one way, i.e., 52359696 + 4447881 = 7236^2 + 2109^2 .

It is not a de Polignac number, because 56807577 - 2⁴ = 56807561 is a prime.

It is a super-2 number, since 2×56807577² = 6454201609221858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56807567) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3155968 + ... + 3155985.

Almost surely, 2^56807577 is an apocalyptic number.

It is an amenable number.

56807577 is a deficient number, since it is larger than the sum of its proper divisors (25247825).

56807577 is a wasteful number, since it uses less digits than its factorization.

56807577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6311959 (or 6311956 counting only the distinct ones).

The product of its (nonzero) digits is 411600, while the sum is 45.

The square root of 56807577 is about 7537.0801375599. The cubic root of 56807577 is about 384.4165604873.

The spelling of 56807577 in words is "fifty-six million, eight hundred seven thousand, five hundred seventy-seven".