56431224 has 24 divisors (see below), whose sum is σ = 152834760. Its totient is φ = 18810384.

The previous prime is 56431223. The next prime is 56431237. The reversal of 56431224 is 42213465.

56431224 is a `hidden beast` number, since 5 + 6 + 431 + 224 = 666.

56431224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56431223) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 391812 + ... + 391955.

It is an arithmetic number, because the mean of its divisors is an integer number (6368115).

Almost surely, 2^56431224 is an apocalyptic number.

It is an amenable number.

56431224 is an abundant number, since it is smaller than the sum of its proper divisors (96403536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56431224 is a wasteful number, since it uses less digits than its factorization.

56431224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783779 (or 783772 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 56431224 is about 7512.0718846401. The cubic root of 56431224 is about 383.5657526049.

Adding to 56431224 its reverse (42213465), we get a palindrome (98644689).

The spelling of 56431224 in words is "fifty-six million, four hundred thirty-one thousand, two hundred twenty-four".