56613204 has 18 divisors (see below), whose sum is σ = 143105690. Its totient is φ = 18871056.

The previous prime is 56613197. The next prime is 56613209. The reversal of 56613204 is 40231665.

It can be written as a sum of positive squares in only one way, i.e., 44916804 + 11696400 = 6702^2 + 3420^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56613209) 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, 786259 + ... + 786330.

Almost surely, 2^56613204 is an apocalyptic number.

It is an amenable number.

56613204 is an abundant number, since it is smaller than the sum of its proper divisors (86492486).

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

56613204 is a wasteful number, since it uses less digits than its factorization.

56613204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572599 (or 1572594 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 56613204 is about 7524.1746391216. The cubic root of 56613204 is about 383.9776191383.

Adding to 56613204 its reverse (40231665), we get a palindrome (96844869).

The spelling of 56613204 in words is "fifty-six million, six hundred thirteen thousand, two hundred four".