522258 has 32 divisors (see below), whose sum is σ = 1173312. Its totient is φ = 153600.

The previous prime is 522251. The next prime is 522259. The reversal of 522258 is 852225.

It is a d-powerful number, because it can be written as 5² + 2⁴ + 2⁹ + 2¹⁷ + 5⁸ + 8 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (522251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2610 + ... + 2802.

It is an arithmetic number, because the mean of its divisors is an integer number (36666).

2⁵²²²⁵⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 522258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (586656).

522258 is an abundant number, since it is smaller than the sum of its proper divisors (651054).

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

522258 is a wasteful number, since it uses less digits than its factorization.

522258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250.

The product of its digits is 1600, while the sum is 24.

The square root of 522258 is about 722.6742004527. The cubic root of 522258 is about 80.5307419589.

It can be divided in two parts, 522 and 258, that added together give a triangular number (780 = T₃₉).

The spelling of 522258 in words is "five hundred twenty-two thousand, two hundred fifty-eight".