56205900 has 144 divisors (see below), whose sum is σ = 183634080. Its totient is φ = 14929920.

The previous prime is 56205887. The next prime is 56205911. The reversal of 56205900 is 950265.

56205900 is a `hidden beast` number, since 56 + 20 + 590 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 218572 + ... + 218828.

Almost surely, 2^56205900 is an apocalyptic number.

56205900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56205900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91817040).

56205900 is an abundant number, since it is smaller than the sum of its proper divisors (127428180).

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

56205900 is a wasteful number, since it uses less digits than its factorization.

56205900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 56205900 is about 7497.0594235340. The cubic root of 56205900 is about 383.0545589186.

The spelling of 56205900 in words is "fifty-six million, two hundred five thousand, nine hundred".