525258 has 32 divisors (see below), whose sum is σ = 1192320. Its totient is φ = 171360.

The previous prime is 525257. The next prime is 525299. The reversal of 525258 is 852525.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between odd and even.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 525258.

It is not an unprimeable number, because it can be changed into a prime (525253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3766 + ... + 3902.

It is an arithmetic number, because the mean of its divisors is an integer number (37260).

2⁵²⁵²⁵⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (596160).

525258 is an abundant number, since it is smaller than the sum of its proper divisors (667062).

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

525258 is a wasteful number, since it uses less digits than its factorization.

525258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 213 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 525258 is about 724.7468523560. The cubic root of 525258 is about 80.6846448860.

The spelling of 525258 in words is "five hundred twenty-five thousand, two hundred fifty-eight".