56581300 has 18 divisors (see below), whose sum is σ = 122781638. Its totient is φ = 22632480.

The previous prime is 56581243. The next prime is 56581303. The reversal of 56581300 is 318565.

It can be written as a sum of positive squares in 3 ways, for example, as 121104 + 56460196 = 348^2 + 7514^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56581303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 282807 + ... + 283006.

Almost surely, 2^56581300 is an apocalyptic number.

56581300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56581300 is an abundant number, since it is smaller than the sum of its proper divisors (66200338).

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

56581300 is a wasteful number, since it uses less digits than its factorization.

56581300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565827 (or 565820 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 56581300 is about 7522.0542406978. The cubic root of 56581300 is about 383.9054762280.

Adding to 56581300 its reverse (318565), we get a palindrome (56899865).

The spelling of 56581300 in words is "fifty-six million, five hundred eighty-one thousand, three hundred".