52569728 has 16 divisors (see below), whose sum is σ = 104729010. Its totient is φ = 26284800.

The previous prime is 52569701. The next prime is 52569731. The reversal of 52569728 is 82796525.

It can be written as a sum of positive squares in only one way, i.e., 47224384 + 5345344 = 6872^2 + 2312^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205223 + ... + 205478.

Almost surely, 2^52569728 is an apocalyptic number.

It is an amenable number.

52569728 is a deficient number, since it is larger than the sum of its proper divisors (52159282).

52569728 is an equidigital number, since it uses as much as digits as its factorization.

52569728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410715 (or 410703 counting only the distinct ones).

The product of its digits is 302400, while the sum is 44.

The square root of 52569728 is about 7250.4984656229. The cubic root of 52569728 is about 374.6093187527.

The spelling of 52569728 in words is "fifty-two million, five hundred sixty-nine thousand, seven hundred twenty-eight".