255544 has 16 divisors (see below), whose sum is σ = 507600. Its totient is φ = 120192.

The previous prime is 255523. The next prime is 255551. The reversal of 255544 is 445552.

It is an Ulam number.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

255544 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 804 + ... + 1075.

It is an arithmetic number, because the mean of its divisors is an integer number (31725).

2²⁵⁵⁵⁴⁴ is an apocalyptic number.

It is an amenable number.

255544 is a deficient number, since it is larger than the sum of its proper divisors (252056).

255544 is a wasteful number, since it uses less digits than its factorization.

255544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902 (or 1898 counting only the distinct ones).

The product of its digits is 4000, while the sum is 25.

The square root of 255544 is about 505.5136002127. The cubic root of 255544 is about 63.4583188967.

The spelling of 255544 in words is "two hundred fifty-five thousand, five hundred forty-four".