56424645 has 24 divisors (see below), whose sum is σ = 98987616. Its totient is φ = 29728608.

The previous prime is 56424617. The next prime is 56424671. The reversal of 56424645 is 54642465.

56424645 is a `hidden beast` number, since 5 + 6 + 4 + 2 + 4 + 645 = 666.

It is not a de Polignac number, because 56424645 - 2¹⁹ = 55900357 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3819 + ... + 11288.

It is an arithmetic number, because the mean of its divisors is an integer number (4124484).

Almost surely, 2^56424645 is an apocalyptic number.

It is an amenable number.

56424645 is a deficient number, since it is larger than the sum of its proper divisors (42562971).

56424645 is a wasteful number, since it uses less digits than its factorization.

56424645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15201 (or 15198 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 56424645 is about 7511.6339767057. The cubic root of 56424645 is about 383.5508460988.

The spelling of 56424645 in words is "fifty-six million, four hundred twenty-four thousand, six hundred forty-five".