258522 has 16 divisors (see below), whose sum is σ = 564192. Its totient is φ = 78320.

The previous prime is 258521. The next prime is 258527. The reversal of 258522 is 225852.

It is a junction number, because it is equal to n+sod(n) for n = 258492 and 258501.

It is not an unprimeable number, because it can be changed into a prime (258521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1893 + ... + 2024.

It is an arithmetic number, because the mean of its divisors is an integer number (35262).

2²⁵⁸⁵²² is an apocalyptic number.

258522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

258522 is an abundant number, since it is smaller than the sum of its proper divisors (305670).

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

258522 is a wasteful number, since it uses less digits than its factorization.

258522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3933.

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

The square root of 258522 is about 508.4505875697. The cubic root of 258522 is about 63.7038728220.

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

The spelling of 258522 in words is "two hundred fifty-eight thousand, five hundred twenty-two".