56503940 has 24 divisors (see below), whose sum is σ = 118849920. Its totient is φ = 22565088.

The previous prime is 56503927. The next prime is 56503943. The reversal of 56503940 is 4930565.

It is a happy number.

56503940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 56503897 and 56503906.

It is not an unprimeable number, because it can be changed into a prime (56503943) 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 7 ways as a sum of consecutive naturals, for example, 12869 + ... + 16691.

It is an arithmetic number, because the mean of its divisors is an integer number (4952080).

Almost surely, 2^56503940 is an apocalyptic number.

It is an amenable number.

56503940 is an abundant number, since it is smaller than the sum of its proper divisors (62345980).

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

56503940 is a wasteful number, since it uses less digits than its factorization.

56503940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4571 (or 4569 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 56503940 is about 7516.9102695190. The cubic root of 56503940 is about 383.7304332775.

The spelling of 56503940 in words is "fifty-six million, five hundred three thousand, nine hundred forty".