520065 has 48 divisors (see below), whose sum is σ = 1118208. Its totient is φ = 217728.

The previous prime is 520063. The next prime is 520067. The reversal of 520065 is 560025.

It is an interprime number because it is at equal distance from previous prime (520063) and next prime (520067).

It is not a de Polignac number, because 520065 - 2¹ = 520063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520063) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4032 + ... + 4158.

It is an arithmetic number, because the mean of its divisors is an integer number (23296).

2⁵²⁰⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

520065 is an abundant number, since it is smaller than the sum of its proper divisors (598143).

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

520065 is a wasteful number, since it uses less digits than its factorization.

520065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 520065 is about 721.1553230754. The cubic root of 520065 is about 80.4178656370.

The spelling of 520065 in words is "five hundred twenty thousand, sixty-five".