520395 has 8 divisors (see below), whose sum is σ = 832656. Its totient is φ = 277536.

The previous prime is 520393. The next prime is 520409. The reversal of 520395 is 593025.

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

It is not a de Polignac number, because 520395 - 2¹ = 520393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520393) 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, 17332 + ... + 17361.

It is an arithmetic number, because the mean of its divisors is an integer number (104082).

2⁵²⁰³⁹⁵ is an apocalyptic number.

520395 is a deficient number, since it is larger than the sum of its proper divisors (312261).

520395 is a wasteful number, since it uses less digits than its factorization.

520395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34701.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 520395 is about 721.3840863230. The cubic root of 520395 is about 80.4348713860.

The spelling of 520395 in words is "five hundred twenty thousand, three hundred ninety-five".