525339 has 8 divisors (see below), whose sum is σ = 778320. Its totient is φ = 350208.

The previous prime is 525313. The next prime is 525353. The reversal of 525339 is 933525.

It is not a de Polignac number, because 525339 - 2⁹ = 524827 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 19457 = 525339 / (5 + 2 + 5 + 3 + 3 + 9).

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (525359) 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, 9702 + ... + 9755.

It is an arithmetic number, because the mean of its divisors is an integer number (97290).

2⁵²⁵³³⁹ is an apocalyptic number.

525339 is a deficient number, since it is larger than the sum of its proper divisors (252981).

525339 is a wasteful number, since it uses less digits than its factorization.

525339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19466 (or 19460 counting only the distinct ones).

The product of its digits is 4050, while the sum is 27.

The square root of 525339 is about 724.8027317829. The cubic root of 525339 is about 80.6887921307.

The spelling of 525339 in words is "five hundred twenty-five thousand, three hundred thirty-nine".