56130500 has 24 divisors (see below), whose sum is σ = 122590104. Its totient is φ = 22452000.

The previous prime is 56130479. The next prime is 56130509. The reversal of 56130500 is 503165.

It can be written as a sum of positive squares in 4 ways, for example, as 1459264 + 54671236 = 1208^2 + 7394^2 .

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (56130509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55631 + ... + 56630.

It is an arithmetic number, because the mean of its divisors is an integer number (5107921).

Almost surely, 2^56130500 is an apocalyptic number.

56130500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56130500 is an abundant number, since it is smaller than the sum of its proper divisors (66459604).

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

56130500 is a wasteful number, since it uses less digits than its factorization.

56130500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112280 (or 112268 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 56130500 is about 7492.0290976477. The cubic root of 56130500 is about 382.8831935249.

Adding to 56130500 its reverse (503165), we get a palindrome (56633665).

The spelling of 56130500 in words is "fifty-six million, one hundred thirty thousand, five hundred".