520265 has 4 divisors (see below), whose sum is σ = 624324. Its totient is φ = 416208.

The previous prime is 520241. The next prime is 520279. The reversal of 520265 is 562025.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 300304 + 219961 = 548^2 + 469^2 .

It is a cyclic number.

It is not a de Polignac number, because 520265 - 2¹² = 516169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52022 + ... + 52031.

It is an arithmetic number, because the mean of its divisors is an integer number (156081).

2⁵²⁰²⁶⁵ is an apocalyptic number.

It is an amenable number.

520265 is a deficient number, since it is larger than the sum of its proper divisors (104059).

520265 is a wasteful number, since it uses less digits than its factorization.

520265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104058.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 520265 is about 721.2939761290. The cubic root of 520265 is about 80.4281730100.

The spelling of 520265 in words is "five hundred twenty thousand, two hundred sixty-five".