56031100 has 18 divisors (see below), whose sum is σ = 121587704. Its totient is φ = 22412400.

The previous prime is 56031071. The next prime is 56031169. The reversal of 56031100 is 113065.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 280056 + ... + 280255.

Almost surely, 2^56031100 is an apocalyptic number.

56031100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56031100 is an abundant number, since it is smaller than the sum of its proper divisors (65556604).

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

56031100 is a wasteful number, since it uses less digits than its factorization.

56031100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560325 (or 560318 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 56031100 is about 7485.3924412819. The cubic root of 56031100 is about 382.6570474474.

Adding to 56031100 its reverse (113065), we get a palindrome (56144165).

The spelling of 56031100 in words is "fifty-six million, thirty-one thousand, one hundred".