255163888 has 20 divisors (see below), whose sum is σ = 565006000. Its totient is φ = 109355904.

The previous prime is 255163873. The next prime is 255163891. The reversal of 255163888 is 888361552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1139013 + ... + 1139236.

It is an arithmetic number, because the mean of its divisors is an integer number (28250300).

Almost surely, 2^255163888 is an apocalyptic number.

255163888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

255163888 is an abundant number, since it is smaller than the sum of its proper divisors (309842112).

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

255163888 is a wasteful number, since it uses less digits than its factorization.

255163888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278264 (or 2278258 counting only the distinct ones).

The product of its digits is 460800, while the sum is 46.

The square root of 255163888 is about 15973.8501307606. The cubic root of 255163888 is about 634.2683933649.

The spelling of 255163888 in words is "two hundred fifty-five million, one hundred sixty-three thousand, eight hundred eighty-eight".