56877040 has 40 divisors (see below), whose sum is σ = 144263088. Its totient is φ = 20682240.

The previous prime is 56877031. The next prime is 56877043. The reversal of 56877040 is 4077865.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56877043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31437 + ... + 33196.

Almost surely, 2^56877040 is an apocalyptic number.

It is an amenable number.

56877040 is an abundant number, since it is smaller than the sum of its proper divisors (87386048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56877040 is a wasteful number, since it uses less digits than its factorization.

56877040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64657 (or 64651 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 56877040 is about 7541.6868139694. The cubic root of 56877040 is about 384.5731819130.

The spelling of 56877040 in words is "fifty-six million, eight hundred seventy-seven thousand, forty".