56977837 has 24 divisors (see below), whose sum is σ = 69419160. Its totient is φ = 46569600.

The previous prime is 56977793. The next prime is 56977853. The reversal of 56977837 is 73877965.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 28451556 + 28526281 = 5334^2 + 5341^2 .

It is not a de Polignac number, because 56977837 - 2¹⁵ = 56945069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56977867) 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, 143323 + ... + 143719.

It is an arithmetic number, because the mean of its divisors is an integer number (2892465).

Almost surely, 2^56977837 is an apocalyptic number.

It is an amenable number.

56977837 is a deficient number, since it is larger than the sum of its proper divisors (12441323).

56977837 is a wasteful number, since it uses less digits than its factorization.

56977837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541 (or 534 counting only the distinct ones).

The product of its digits is 2222640, while the sum is 52.

The square root of 56977837 is about 7548.3665120342. The cubic root of 56977837 is about 384.8002269360.

The spelling of 56977837 in words is "fifty-six million, nine hundred seventy-seven thousand, eight hundred thirty-seven".