56943216 has 160 divisors (see below), whose sum is σ = 186416640. Its totient is φ = 16473600.

The previous prime is 56943199. The next prime is 56943221. The reversal of 56943216 is 61234965.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109036 + ... + 109556.

It is an arithmetic number, because the mean of its divisors is an integer number (1165104).

Almost surely, 2^56943216 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 56943216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93208320).

56943216 is an abundant number, since it is smaller than the sum of its proper divisors (129473424).

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

56943216 is a wasteful number, since it uses less digits than its factorization.

56943216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572 (or 560 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 56943216 is about 7546.0728859454. The cubic root of 56943216 is about 384.7222734219.

The spelling of 56943216 in words is "fifty-six million, nine hundred forty-three thousand, two hundred sixteen".