56604909 has 8 divisors (see below), whose sum is σ = 78754752. Its totient is φ = 36095840.

The previous prime is 56604893. The next prime is 56604913. The reversal of 56604909 is 90940665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56604909 - 2⁴ = 56604893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56604959) 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, 410112 + ... + 410249.

It is an arithmetic number, because the mean of its divisors is an integer number (9844344).

Almost surely, 2^56604909 is an apocalyptic number.

It is an amenable number.

56604909 is a deficient number, since it is larger than the sum of its proper divisors (22149843).

56604909 is a wasteful number, since it uses less digits than its factorization.

56604909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820387.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 56604909 is about 7523.6233956784. The cubic root of 56604909 is about 383.9588646800.

The spelling of 56604909 in words is "fifty-six million, six hundred four thousand, nine hundred nine".