255760 has 40 divisors (see below), whose sum is σ = 624960. Its totient is φ = 97152.

The previous prime is 255757. The next prime is 255763. The reversal of 255760 is 67552.

It is a happy number.

255760 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (255757) and next prime (255763).

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (255763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1771 + ... + 1909.

It is an arithmetic number, because the mean of its divisors is an integer number (15624).

2²⁵⁵⁷⁶⁰ is an apocalyptic number.

255760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312480).

255760 is an abundant number, since it is smaller than the sum of its proper divisors (369200).

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

255760 is a wasteful number, since it uses less digits than its factorization.

255760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 255760 is about 505.7271991894. The cubic root of 255760 is about 63.4761933616.

The spelling of 255760 in words is "two hundred fifty-five thousand, seven hundred sixty".