255700 has 18 divisors (see below), whose sum is σ = 555086. Its totient is φ = 102240.

The previous prime is 255679. The next prime is 255709. The reversal of 255700 is 7552.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 11664 + 244036 = 108^2 + 494^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1179 + ... + 1378.

2²⁵⁵⁷⁰⁰ is an apocalyptic number.

255700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255700 is an abundant number, since it is smaller than the sum of its proper divisors (299386).

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

255700 is a wasteful number, since it uses less digits than its factorization.

255700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571 (or 2564 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 19.

The square root of 255700 is about 505.6678751908. The cubic root of 255700 is about 63.4712292423.

The spelling of 255700 in words is "two hundred fifty-five thousand, seven hundred".