56773820 has 24 divisors (see below), whose sum is σ = 119451024. Its totient is φ = 22666496.

The previous prime is 56773813. The next prime is 56773831. The reversal of 56773820 is 2837765.

It is a happy number.

56773820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 9467 + ... + 14253.

It is an arithmetic number, because the mean of its divisors is an integer number (4977126).

Almost surely, 2^56773820 is an apocalyptic number.

It is an amenable number.

56773820 is an abundant number, since it is smaller than the sum of its proper divisors (62677204).

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

56773820 is a wasteful number, since it uses less digits than its factorization.

56773820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5389 (or 5387 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 56773820 is about 7534.8404097234. The cubic root of 56773820 is about 384.3404009221.

The spelling of 56773820 in words is "fifty-six million, seven hundred seventy-three thousand, eight hundred twenty".