255574728 has 24 divisors (see below), whose sum is σ = 692181750. Its totient is φ = 85191552.

The previous prime is 255574723. The next prime is 255574729. The reversal of 255574728 is 827475552.

255574728 is a `hidden beast` number, since 2 + 5 + 5 + 574 + 72 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 189282564 + 66292164 = 13758^2 + 8142^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (255574723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1774753 + ... + 1774896.

Almost surely, 2^255574728 is an apocalyptic number.

It is an amenable number.

255574728 is an abundant number, since it is smaller than the sum of its proper divisors (436607022).

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

255574728 is a wasteful number, since it uses less digits than its factorization.

255574728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3549661 (or 3549654 counting only the distinct ones).

The product of its digits is 784000, while the sum is 45.

The square root of 255574728 is about 15986.7047261154. The cubic root of 255574728 is about 634.6086231922.

The spelling of 255574728 in words is "two hundred fifty-five million, five hundred seventy-four thousand, seven hundred twenty-eight".