255536568 has 72 divisors (see below), whose sum is σ = 805081680. Its totient is φ = 73009440.

The previous prime is 255536557. The next prime is 255536569. The reversal of 255536568 is 865635552.

255536568 is a `hidden beast` number, since 2 + 5 + 55 + 36 + 568 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255536569) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 32688 + ... + 39743.

It is an arithmetic number, because the mean of its divisors is an integer number (11181690).

Almost surely, 2^255536568 is an apocalyptic number.

255536568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

255536568 is an abundant number, since it is smaller than the sum of its proper divisors (549545112).

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

255536568 is a wasteful number, since it uses less digits than its factorization.

255536568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72457 (or 72443 counting only the distinct ones).

The product of its digits is 1080000, while the sum is 45.

The square root of 255536568 is about 15985.5111898244. The cubic root of 255536568 is about 634.5770370352.

The spelling of 255536568 in words is "two hundred fifty-five million, five hundred thirty-six thousand, five hundred sixty-eight".