56977767 has 24 divisors (see below), whose sum is σ = 102610560. Its totient is φ = 29598480.

The previous prime is 56977733. The next prime is 56977777. The reversal of 56977767 is 76777965.

56977767 is a `hidden beast` number, since 569 + 7 + 7 + 76 + 7 = 666.

It is not a de Polignac number, because 56977767 - 2⁸ = 56977511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56977717) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40417 + ... + 41802.

It is an arithmetic number, because the mean of its divisors is an integer number (4275440).

Almost surely, 2^56977767 is an apocalyptic number.

56977767 is a deficient number, since it is larger than the sum of its proper divisors (45632793).

56977767 is a wasteful number, since it uses less digits than its factorization.

56977767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82243 (or 82240 counting only the distinct ones).

The product of its digits is 3889620, while the sum is 54.

The square root of 56977767 is about 7548.3618752680. The cubic root of 56977767 is about 384.8000693541.

The spelling of 56977767 in words is "fifty-six million, nine hundred seventy-seven thousand, seven hundred sixty-seven".