255550000 has 120 divisors (see below), whose sum is σ = 653864400. Its totient is φ = 96480000.

The previous prime is 255549997. The next prime is 255550013. The reversal of 255550000 is 55552.

255550000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 949866 + ... + 950134.

It is an arithmetic number, because the mean of its divisors is an integer number (5448870).

Almost surely, 2^255550000 is an apocalyptic number.

255550000 is a gapful number since it is divisible by the number (20) 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 255550000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326932200).

255550000 is an abundant number, since it is smaller than the sum of its proper divisors (398314400).

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

255550000 is an equidigital number, since it uses as much as digits as its factorization.

255550000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 22.

The square root of 255550000 is about 15985.9313147530. The cubic root of 255550000 is about 634.5881554562.

The spelling of 255550000 in words is "two hundred fifty-five million, five hundred fifty thousand".