56816780 has 24 divisors (see below), whose sum is σ = 120549408. Its totient is φ = 22491648.

The previous prime is 56816779. The next prime is 56816791. The reversal of 56816780 is 8761865.

56816780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12704 + ... + 16583.

It is an arithmetic number, because the mean of its divisors is an integer number (5022892).

Almost surely, 2^56816780 is an apocalyptic number.

It is an amenable number.

56816780 is an abundant number, since it is smaller than the sum of its proper divisors (63732628).

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

56816780 is a wasteful number, since it uses less digits than its factorization.

56816780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29393 (or 29391 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 56816780 is about 7537.6906277719. The cubic root of 56816780 is about 384.4373182498.

The spelling of 56816780 in words is "fifty-six million, eight hundred sixteen thousand, seven hundred eighty".