525259 has 4 divisors (see below), whose sum is σ = 600304. Its totient is φ = 450216.

The previous prime is 525257. The next prime is 525299. The reversal of 525259 is 952525.

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

It is a cyclic number.

It is not a de Polignac number, because 525259 - 2¹ = 525257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525253) 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, 37512 + ... + 37525.

It is an arithmetic number, because the mean of its divisors is an integer number (150076).

2⁵²⁵²⁵⁹ is an apocalyptic number.

525259 is a deficient number, since it is larger than the sum of its proper divisors (75045).

525259 is an equidigital number, since it uses as much as digits as its factorization.

525259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75044.

The product of its digits is 4500, while the sum is 28.

The square root of 525259 is about 724.7475422518. The cubic root of 525259 is about 80.6846960892.

It can be divided in two parts, 525 and 259, that added together give a square (784 = 28²).

The spelling of 525259 in words is "five hundred twenty-five thousand, two hundred fifty-nine".