255503900 has 36 divisors (see below), whose sum is σ = 555141552. Its totient is φ = 102072960.

The previous prime is 255503879. The next prime is 255503921. The reversal of 255503900 is 9305552.

It is an interprime number because it is at equal distance from previous prime (255503879) and next prime (255503921).

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, 142409 + ... + 144191.

Almost surely, 2^255503900 is an apocalyptic number.

255503900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255503900 is an abundant number, since it is smaller than the sum of its proper divisors (299637652).

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

255503900 is a wasteful number, since it uses less digits than its factorization.

255503900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3230 (or 3223 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 29.

The square root of 255503900 is about 15984.4893568734. The cubic root of 255503900 is about 634.5499942702.

The spelling of 255503900 in words is "two hundred fifty-five million, five hundred three thousand, nine hundred".