56604247 has 4 divisors (see below), whose sum is σ = 64690576. Its totient is φ = 48517920.

The previous prime is 56604241. The next prime is 56604263. The reversal of 56604247 is 74240665.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56604247 - 2³ = 56604239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56604241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4043154 + ... + 4043167.

It is an arithmetic number, because the mean of its divisors is an integer number (16172644).

Almost surely, 2^56604247 is an apocalyptic number.

56604247 is a deficient number, since it is larger than the sum of its proper divisors (8086329).

56604247 is an equidigital number, since it uses as much as digits as its factorization.

56604247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8086328.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 56604247 is about 7523.5794007906. The cubic root of 56604247 is about 383.9573678619.

The spelling of 56604247 in words is "fifty-six million, six hundred four thousand, two hundred forty-seven".