255225 has 24 divisors (see below), whose sum is σ = 437472. Its totient is φ = 131200.

The previous prime is 255217. The next prime is 255239. The reversal of 255225 is 522552.

It is not a de Polignac number, because 255225 - 2³ = 255217 is a prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 255225.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3034 + ... + 3116.

It is an arithmetic number, because the mean of its divisors is an integer number (18228).

2²⁵⁵²²⁵ is an apocalyptic number.

255225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255225 is a deficient number, since it is larger than the sum of its proper divisors (182247).

255225 is a wasteful number, since it uses less digits than its factorization.

255225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 132 counting only the distinct ones).

The product of its digits is 1000, while the sum is 21.

The square root of 255225 is about 505.1979809936. The cubic root of 255225 is about 63.4319025289.

Adding to 255225 its reverse (522552), we get a palindrome (777777).

It can be divided in two parts, 255 and 225, that multiplied together give a palindrome (57375).

The spelling of 255225 in words is "two hundred fifty-five thousand, two hundred twenty-five".