255633868 has 24 divisors (see below), whose sum is σ = 533498112. Its totient is φ = 104793744.

The previous prime is 255633841. The next prime is 255633881. The reversal of 255633868 is 868336552.

255633868 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197830 + ... + 199117.

It is an arithmetic number, because the mean of its divisors is an integer number (22229088).

Almost surely, 2^255633868 is an apocalyptic number.

255633868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

255633868 is an abundant number, since it is smaller than the sum of its proper divisors (277864244).

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

255633868 is a wasteful number, since it uses less digits than its factorization.

255633868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396981 (or 396979 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 46.

The square root of 255633868 is about 15988.5542811100. The cubic root of 255633868 is about 634.6575689021.

The spelling of 255633868 in words is "two hundred fifty-five million, six hundred thirty-three thousand, eight hundred sixty-eight".