56397424 has 20 divisors (see below), whose sum is σ = 111812536. Its totient is φ = 27542592.

The previous prime is 56397413. The next prime is 56397437. The reversal of 56397424 is 42479365.

It is a happy number.

56397424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40299 + ... + 41674.

Almost surely, 2^56397424 is an apocalyptic number.

It is an amenable number.

56397424 is a deficient number, since it is larger than the sum of its proper divisors (55415112).

56397424 is a wasteful number, since it uses less digits than its factorization.

56397424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82024 (or 82018 counting only the distinct ones).

The product of its digits is 181440, while the sum is 40.

The square root of 56397424 is about 7509.8218354366. The cubic root of 56397424 is about 383.4891572334.

The spelling of 56397424 in words is "fifty-six million, three hundred ninety-seven thousand, four hundred twenty-four".