520067017 has 4 divisors (see below), whose sum is σ = 520878996. Its totient is φ = 519255040.

The previous prime is 520067003. The next prime is 520067021. The reversal of 520067017 is 710760025.

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 495107001 + 24960016 = 22251^2 + 4996^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520067017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520067117) 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, 405028 + ... + 406309.

It is an arithmetic number, because the mean of its divisors is an integer number (130219749).

Almost surely, 2^520067017 is an apocalyptic number.

It is an amenable number.

520067017 is a deficient number, since it is larger than the sum of its proper divisors (811979).

520067017 is an equidigital number, since it uses as much as digits as its factorization.

520067017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811978.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 520067017 is about 22804.9778995727. The cubic root of 520067017 is about 804.1796960003.

The spelling of 520067017 in words is "five hundred twenty million, sixty-seven thousand, seventeen".