255226 has 8 divisors (see below), whose sum is σ = 393300. Its totient is φ = 124128.

The previous prime is 255217. The next prime is 255239. The reversal of 255226 is 622552.

It can be written as a sum of positive squares in 2 ways, for example, as 251001 + 4225 = 501^2 + 65^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×255226² = 130280622152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 255197 and 255206.

It is an unprimeable number.

255226 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, 1651 + ... + 1798.

2²⁵⁵²²⁶ is an apocalyptic number.

255226 is a deficient number, since it is larger than the sum of its proper divisors (138074).

255226 is a wasteful number, since it uses less digits than its factorization.

255226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3488.

The product of its digits is 1200, while the sum is 22.

The square root of 255226 is about 505.1989707036. The cubic root of 255226 is about 63.4319853732.

Adding to 255226 its reverse (622552), we get a palindrome (877778).

It can be divided in two parts, 255 and 226, that multiplied together give a triangular number (57630 = T₃₃₉).

The spelling of 255226 in words is "two hundred fifty-five thousand, two hundred twenty-six".