525318 has 8 divisors (see below), whose sum is σ = 1050648. Its totient is φ = 175104.

The previous prime is 525313. The next prime is 525353. The reversal of 525318 is 813525.

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

525318 is an admirable number.

It is a super-2 number, since 2×525318² = 551918002248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43771 + ... + 43782.

It is an arithmetic number, because the mean of its divisors is an integer number (131331).

2⁵²⁵³¹⁸ is an apocalyptic number.

525318 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

525318 is a wasteful number, since it uses less digits than its factorization.

525318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87558.

The product of its digits is 1200, while the sum is 24.

The square root of 525318 is about 724.7882449378. The cubic root of 525318 is about 80.6877169601.

The spelling of 525318 in words is "five hundred twenty-five thousand, three hundred eighteen".