56837680 has 40 divisors (see below), whose sum is σ = 136710000. Its totient is φ = 21950208.

The previous prime is 56837633. The next prime is 56837687. The reversal of 56837680 is 8673865.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56837687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9930 + ... + 14569.

It is an arithmetic number, because the mean of its divisors is an integer number (3417750).

Almost surely, 2^56837680 is an apocalyptic number.

It is an amenable number.

56837680 is an abundant number, since it is smaller than the sum of its proper divisors (79872320).

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

56837680 is a wasteful number, since it uses less digits than its factorization.

56837680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24541 (or 24535 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 56837680 is about 7539.0768665666. The cubic root of 56837680 is about 384.4844507751.

The spelling of 56837680 in words is "fifty-six million, eight hundred thirty-seven thousand, six hundred eighty".