56943872 has 18 divisors (see below), whose sum is σ = 113665818. Its totient is φ = 28471808.

The previous prime is 56943871. The next prime is 56943899. The reversal of 56943872 is 27834965.

It can be written as a sum of positive squares in only one way, i.e., 38142976 + 18800896 = 6176^2 + 4336^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56943871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110963 + ... + 111474.

Almost surely, 2^56943872 is an apocalyptic number.

It is an amenable number.

56943872 is a deficient number, since it is larger than the sum of its proper divisors (56721946).

56943872 is an equidigital number, since it uses as much as digits as its factorization.

56943872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222453 (or 222439 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The square root of 56943872 is about 7546.1163521377. The cubic root of 56943872 is about 384.7237507817.

The spelling of 56943872 in words is "fifty-six million, nine hundred forty-three thousand, eight hundred seventy-two".