255557900 has 36 divisors (see below), whose sum is σ = 597222192. Its totient is φ = 94359360.

The previous prime is 255557873. The next prime is 255557903. The reversal of 255557900 is 9755552.

It is not an unprimeable number, because it can be changed into a prime (255557903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96992 + ... + 99591.

Almost surely, 2^255557900 is an apocalyptic number.

255557900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255557900 is an abundant number, since it is smaller than the sum of its proper divisors (341664292).

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

255557900 is a wasteful number, since it uses less digits than its factorization.

255557900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196610 (or 196603 counting only the distinct ones).

The product of its (nonzero) digits is 78750, while the sum is 38.

The square root of 255557900 is about 15986.1784051098. The cubic root of 255557900 is about 634.5946945481.

The spelling of 255557900 in words is "two hundred fifty-five million, five hundred fifty-seven thousand, nine hundred".