255558900 has 36 divisors (see below), whose sum is σ = 739417952. Its totient is φ = 68148960.

The previous prime is 255558899. The next prime is 255558923. The reversal of 255558900 is 9855552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 425632 + ... + 426231.

Almost surely, 2^255558900 is an apocalyptic number.

255558900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255558900 is an abundant number, since it is smaller than the sum of its proper divisors (483859052).

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

255558900 is a wasteful number, since it uses less digits than its factorization.

255558900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851880 (or 851873 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 39.

The square root of 255558900 is about 15986.2096820979. The cubic root of 255558900 is about 634.5955222716.

The spelling of 255558900 in words is "two hundred fifty-five million, five hundred fifty-eight thousand, nine hundred".