520266 has 8 divisors (see below), whose sum is σ = 1040544. Its totient is φ = 173420.

The previous prime is 520241. The next prime is 520279. The reversal of 520266 is 662025.

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

520266 is an admirable number.

It is a congruent number.

It is an unprimeable number.

520266 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43350 + ... + 43361.

It is an arithmetic number, because the mean of its divisors is an integer number (130068).

2⁵²⁰²⁶⁶ is an apocalyptic number.

520266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

520266 is a wasteful number, since it uses less digits than its factorization.

520266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86716.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 520266 is about 721.2946693273. The cubic root of 520266 is about 80.4282245402.

The spelling of 520266 in words is "five hundred twenty thousand, two hundred sixty-six".