56624747 has 4 divisors (see below), whose sum is σ = 56641200. Its totient is φ = 56608296.

The previous prime is 56624717. The next prime is 56624761. The reversal of 56624747 is 74742665.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56624747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56624717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 872 + ... + 10677.

It is an arithmetic number, because the mean of its divisors is an integer number (14160300).

Almost surely, 2^56624747 is an apocalyptic number.

56624747 is a deficient number, since it is larger than the sum of its proper divisors (16453).

56624747 is a wasteful number, since it uses less digits than its factorization.

56624747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16452.

The product of its digits is 282240, while the sum is 41.

The square root of 56624747 is about 7524.9416609034. The cubic root of 56624747 is about 384.0037140664.

The spelling of 56624747 in words is "fifty-six million, six hundred twenty-four thousand, seven hundred forty-seven".