520325 has 12 divisors (see below), whose sum is σ = 695268. Its totient is φ = 384000.

The previous prime is 520313. The next prime is 520339. The reversal of 520325 is 523025.

It can be written as a sum of positive squares in 6 ways, for example, as 484 + 519841 = 22^2 + 721^2 .

It is not a de Polignac number, because 520325 - 2⁴ = 520309 is a prime.

It is a hoax number, since the sum of its digits (17) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 520325.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 476 + ... + 1125.

It is an arithmetic number, because the mean of its divisors is an integer number (57939).

2⁵²⁰³²⁵ is an apocalyptic number.

It is an amenable number.

520325 is a deficient number, since it is larger than the sum of its proper divisors (174943).

520325 is a wasteful number, since it uses less digits than its factorization.

520325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624 (or 1619 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 520325 is about 721.3355668481. The cubic root of 520325 is about 80.4312647068.

Subtracting from 520325 its product of nonzero digits (300), we obtain a palindrome (520025).

The spelling of 520325 in words is "five hundred twenty thousand, three hundred twenty-five".