56643424 has 24 divisors (see below), whose sum is σ = 111712608. Its totient is φ = 28272000.

The previous prime is 56643403. The next prime is 56643437. The reversal of 56643424 is 42434665.

It is a self number, because there is not a number n which added to its sum of digits gives 56643424.

It is a congruent number.

It is an unprimeable number.

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, 22854 + ... + 25210.

It is an arithmetic number, because the mean of its divisors is an integer number (4654692).

Almost surely, 2^56643424 is an apocalyptic number.

It is an amenable number.

56643424 is a deficient number, since it is larger than the sum of its proper divisors (55069184).

56643424 is a wasteful number, since it uses less digits than its factorization.

56643424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3118 (or 3110 counting only the distinct ones).

The product of its digits is 69120, while the sum is 34.

The square root of 56643424 is about 7526.1825648864. The cubic root of 56643424 is about 384.0459291128.

The spelling of 56643424 in words is "fifty-six million, six hundred forty-three thousand, four hundred twenty-four".