56543784 has 48 divisors (see below), whose sum is σ = 155386560. Its totient is φ = 17133600.

The previous prime is 56543759. The next prime is 56543813. The reversal of 56543784 is 48734565.

56543784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11 ways as a sum of consecutive naturals, for example, 6832 + ... + 12639.

It is an arithmetic number, because the mean of its divisors is an integer number (3237220).

Almost surely, 2^56543784 is an apocalyptic number.

It is an amenable number.

56543784 is an abundant number, since it is smaller than the sum of its proper divisors (98842776).

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

56543784 is a wasteful number, since it uses less digits than its factorization.

56543784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19502 (or 19487 counting only the distinct ones).

The product of its digits is 403200, while the sum is 42.

The square root of 56543784 is about 7519.5600935161. The cubic root of 56543784 is about 383.8206084818.

The spelling of 56543784 in words is "fifty-six million, five hundred forty-three thousand, seven hundred eighty-four".