56269728 has 120 divisors (see below), whose sum is σ = 175359492. Its totient is φ = 17639424.

The previous prime is 56269727. The next prime is 56269747. The reversal of 56269728 is 82796265.

56269728 is a `hidden beast` number, since 562 + 69 + 7 + 28 = 666.

56269728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 53406864 + 2862864 = 7308^2 + 1692^2 .

It is not an unprimeable number, because it can be changed into a prime (56269721) 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 19 ways as a sum of consecutive naturals, for example, 43426 + ... + 44702.

Almost surely, 2^56269728 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 56269728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87679746).

56269728 is an abundant number, since it is smaller than the sum of its proper divisors (119089764).

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

56269728 is a wasteful number, since it uses less digits than its factorization.

56269728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316 (or 1299 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 56269728 is about 7501.3150847035. The cubic root of 56269728 is about 383.1995043018.

The spelling of 56269728 in words is "fifty-six million, two hundred sixty-nine thousand, seven hundred twenty-eight".