56716780 has 24 divisors (see below), whose sum is σ = 121641408. Its totient is φ = 22203648.

The previous prime is 56716769. The next prime is 56716783. The reversal of 56716780 is 8761765.

It is not an unprimeable number, because it can be changed into a prime (56716783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29229 + ... + 31108.

It is an arithmetic number, because the mean of its divisors is an integer number (5068392).

Almost surely, 2^56716780 is an apocalyptic number.

It is an amenable number.

56716780 is an abundant number, since it is smaller than the sum of its proper divisors (64924628).

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

56716780 is a wasteful number, since it uses less digits than its factorization.

56716780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60393 (or 60391 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 56716780 is about 7531.0543750527. The cubic root of 56716780 is about 384.2116436743.

The spelling of 56716780 in words is "fifty-six million, seven hundred sixteen thousand, seven hundred eighty".