255503808 has 168 divisors, whose sum is σ = 868346752. Its totient is φ = 72969984.

The previous prime is 255503783. The next prime is 255503851. The reversal of 255503808 is 808305552.

255503808 is a `hidden beast` number, since 25 + 550 + 3 + 80 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107691 + ... + 110037.

Almost surely, 2^255503808 is an apocalyptic number.

255503808 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255503808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (434173376).

255503808 is an abundant number, since it is smaller than the sum of its proper divisors (612842944).

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

255503808 is an equidigital number, since it uses as much as digits as its factorization.

255503808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2381 (or 2359 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 255503808 is about 15984.4864790834. The cubic root of 255503808 is about 634.5499181088.

The spelling of 255503808 in words is "two hundred fifty-five million, five hundred three thousand, eight hundred eight".