255120 has 40 divisors (see below), whose sum is σ = 791616. Its totient is φ = 67968.

The previous prime is 255107. The next prime is 255121. The reversal of 255120 is 21552.

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

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a nialpdrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 255120.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 255120.

It is not an unprimeable number, because it can be changed into a prime (255121) by changing a digit.

255120 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 7 ways as a sum of consecutive naturals, for example, 292 + ... + 771.

2²⁵⁵¹²⁰ is an apocalyptic number.

255120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255120 is an abundant number, since it is smaller than the sum of its proper divisors (536496).

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

255120 is a wasteful number, since it uses less digits than its factorization.

255120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079 (or 1073 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 255120 is about 505.0940506480. The cubic root of 255120 is about 63.4232026715.

Adding to 255120 its reverse (21552), we get a palindrome (276672).

The spelling of 255120 in words is "two hundred fifty-five thousand, one hundred twenty".