255628764 has 24 divisors (see below), whose sum is σ = 662741520. Its totient is φ = 85209552.

The previous prime is 255628757. The next prime is 255628771. The reversal of 255628764 is 467826552.

255628764 is a `hidden beast` number, since 2 + 5 + 562 + 87 + 6 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (255628757) and next prime (255628771).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1183359 + ... + 1183574.

It is an arithmetic number, because the mean of its divisors is an integer number (27614230).

Almost surely, 2^255628764 is an apocalyptic number.

It is an amenable number.

255628764 is an abundant number, since it is smaller than the sum of its proper divisors (407112756).

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

255628764 is a wasteful number, since it uses less digits than its factorization.

255628764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366946 (or 2366938 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 255628764 is about 15988.3946661321. The cubic root of 255628764 is about 634.6533450046.

The spelling of 255628764 in words is "two hundred fifty-five million, six hundred twenty-eight thousand, seven hundred sixty-four".