520066 has 8 divisors (see below), whose sum is σ = 783180. Its totient is φ = 259008.

The previous prime is 520063. The next prime is 520067. The reversal of 520066 is 660025.

It can be written as a sum of positive squares in 2 ways, for example, as 519841 + 225 = 721^2 + 15^2 .

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

520066 is a modest number, since divided by 66 gives 52 as remainder.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 630 + ... + 1198.

2⁵²⁰⁰⁶⁶ is an apocalyptic number.

520066 is a deficient number, since it is larger than the sum of its proper divisors (263114).

520066 is a wasteful number, since it uses less digits than its factorization.

520066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 520066 is about 721.1560164070. The cubic root of 520066 is about 80.4179171804.

The spelling of 520066 in words is "five hundred twenty thousand, sixty-six".