56722800 has 60 divisors (see below), whose sum is σ = 181705880. Its totient is φ = 15125760.

The previous prime is 56722793. The next prime is 56722819. The reversal of 56722800 is 822765.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 22435 + ... + 24834.

Almost surely, 2^56722800 is an apocalyptic number.

56722800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56722800 is an abundant number, since it is smaller than the sum of its proper divisors (124983080).

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

56722800 is a wasteful number, since it uses less digits than its factorization.

56722800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47290 (or 47279 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 56722800 is about 7531.4540428791. The cubic root of 56722800 is about 384.2252367842.

The spelling of 56722800 in words is "fifty-six million, seven hundred twenty-two thousand, eight hundred".