56224040 has 64 divisors (see below), whose sum is σ = 137808000. Its totient is φ = 20563200.

The previous prime is 56224039. The next prime is 56224061. The reversal of 56224040 is 4042265.

56224040 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-2 number, since 2×56224040² = 6322285347843200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56223997 and 56224015.

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 15 ways as a sum of consecutive naturals, for example, 20765 + ... + 23315.

It is an arithmetic number, because the mean of its divisors is an integer number (2153250).

Almost surely, 2^56224040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56224040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68904000).

56224040 is an abundant number, since it is smaller than the sum of its proper divisors (81583960).

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

56224040 is a wasteful number, since it uses less digits than its factorization.

56224040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2610 (or 2606 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 56224040 is about 7498.2691336068. The cubic root of 56224040 is about 383.0957637405.

The spelling of 56224040 in words is "fifty-six million, two hundred twenty-four thousand, forty".