258226 has 4 divisors (see below), whose sum is σ = 387342. Its totient is φ = 129112.

The previous prime is 258211. The next prime is 258233. The reversal of 258226 is 622852.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 251001 + 7225 = 501^2 + 85^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 258226.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64555 + ... + 64558.

2²⁵⁸²²⁶ is an apocalyptic number.

258226 is a deficient number, since it is larger than the sum of its proper divisors (129116).

258226 is a wasteful number, since it uses less digits than its factorization.

258226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129115.

The product of its digits is 1920, while the sum is 25.

The square root of 258226 is about 508.1594238032. The cubic root of 258226 is about 63.6795505238.

It can be divided in two parts, 258 and 226, that added together give a palindrome (484).

The spelling of 258226 in words is "two hundred fifty-eight thousand, two hundred twenty-six".