555255 has 24 divisors (see below), whose sum is σ = 1000272. Its totient is φ = 295488.

The previous prime is 555253. The next prime is 555257. The reversal of 555255 is 552555.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (555253) and next prime (555257).

It is not a de Polignac number, because 555255 - 2¹ = 555253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 987 + ... + 1443.

It is an arithmetic number, because the mean of its divisors is an integer number (41678).

2⁵⁵⁵²⁵⁵ is an apocalyptic number.

555255 is a deficient number, since it is larger than the sum of its proper divisors (445017).

555255 is an equidigital number, since it uses as much as digits as its factorization.

555255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 465 counting only the distinct ones).

The product of its digits is 6250, while the sum is 27.

The square root of 555255 is about 745.1543464276. The cubic root of 555255 is about 82.1922417954.

The spelling of 555255 in words is "five hundred fifty-five thousand, two hundred fifty-five".