56309900 has 18 divisors (see below), whose sum is σ = 122192700. Its totient is φ = 22523920.

The previous prime is 56309881. The next prime is 56309917. The reversal of 56309900 is 990365.

56309900 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 5 ways as a sum of consecutive naturals, for example, 281450 + ... + 281649.

Almost surely, 2^56309900 is an apocalyptic number.

56309900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56309900 is an abundant number, since it is smaller than the sum of its proper divisors (65882800).

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

56309900 is a wasteful number, since it uses less digits than its factorization.

56309900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563113 (or 563106 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 56309900 is about 7503.9922707849. The cubic root of 56309900 is about 383.2906736817.

The spelling of 56309900 in words is "fifty-six million, three hundred nine thousand, nine hundred".