56728112 has 20 divisors (see below), whose sum is σ = 125612496. Its totient is φ = 24312000.

The previous prime is 56728079. The next prime is 56728121. The reversal of 56728112 is 21182765.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253139 + ... + 253362.

Almost surely, 2^56728112 is an apocalyptic number.

It is an amenable number.

56728112 is an abundant number, since it is smaller than the sum of its proper divisors (68884384).

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

56728112 is a wasteful number, since it uses less digits than its factorization.

56728112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506516 (or 506510 counting only the distinct ones).

The product of its digits is 6720, while the sum is 32.

The square root of 56728112 is about 7531.8066889691. The cubic root of 56728112 is about 384.2372304373.

It can be divided in two parts, 56728 and 112, that multiplied together give a palindrome (6353536).

The spelling of 56728112 in words is "fifty-six million, seven hundred twenty-eight thousand, one hundred twelve".