56943018 has 48 divisors (see below), whose sum is σ = 135626400. Its totient is φ = 17123040.

The previous prime is 56943011. The next prime is 56943031. The reversal of 56943018 is 81034965.

56943018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (56943011) 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 23 ways as a sum of consecutive naturals, for example, 26488 + ... + 28556.

It is an arithmetic number, because the mean of its divisors is an integer number (2825550).

Almost surely, 2^56943018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56943018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67813200).

56943018 is an abundant number, since it is smaller than the sum of its proper divisors (78683382).

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

56943018 is a wasteful number, since it uses less digits than its factorization.

56943018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227 (or 2224 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 56943018 is about 7546.0597665272. The cubic root of 56943018 is about 384.7218275093.

The spelling of 56943018 in words is "fifty-six million, nine hundred forty-three thousand, eighteen".