56406424 has 16 divisors (see below), whose sum is σ = 105841800. Its totient is φ = 28181952.

The previous prime is 56406409. The next prime is 56406431. The reversal of 56406424 is 42460465.

56406424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×56406424³ (a number of 24 digits) contains 333 as substring.

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, 18924 + ... + 21700.

Almost surely, 2^56406424 is an apocalyptic number.

It is an amenable number.

56406424 is a deficient number, since it is larger than the sum of its proper divisors (49435376).

56406424 is a wasteful number, since it uses less digits than its factorization.

56406424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5322 (or 5318 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 56406424 is about 7510.4210268133. The cubic root of 56406424 is about 383.5095554395.

Adding to 56406424 its reverse (42460465), we get a palindrome (98866889).

The spelling of 56406424 in words is "fifty-six million, four hundred six thousand, four hundred twenty-four".