520514017 has 4 divisors (see below), whose sum is σ = 527644420. Its totient is φ = 513383616.

The previous prime is 520514009. The next prime is 520514119. The reversal of 520514017 is 710415025.

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 124344801 + 396169216 = 11151^2 + 19904^2 .

It is a cyclic number.

It is not a de Polignac number, because 520514017 - 2³ = 520514009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 520513982 and 520514000.

It is not an unprimeable number, because it can be changed into a prime (520518017) 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, 3565092 + ... + 3565237.

It is an arithmetic number, because the mean of its divisors is an integer number (131911105).

Almost surely, 2^520514017 is an apocalyptic number.

It is an amenable number.

520514017 is a deficient number, since it is larger than the sum of its proper divisors (7130403).

520514017 is an equidigital number, since it uses as much as digits as its factorization.

520514017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7130402.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 520514017 is about 22814.7762864333. The cubic root of 520514017 is about 804.4100287416.

The spelling of 520514017 in words is "five hundred twenty million, five hundred fourteen thousand, seventeen".