520005019 has 2 divisors, whose sum is σ = 520005020. Its totient is φ = 520005018.

The previous prime is 520005011. The next prime is 520005037. The reversal of 520005019 is 910500025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 520005019 - 2³ = 520005011 is a prime.

It is a super-2 number, since 2×520005019² = 540810439570380722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (520005011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260002509 + 260002510.

It is an arithmetic number, because the mean of its divisors is an integer number (260002510).

Almost surely, 2^520005019 is an apocalyptic number.

520005019 is a deficient number, since it is larger than the sum of its proper divisors (1).

520005019 is an equidigital number, since it uses as much as digits as its factorization.

520005019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 520005019 is about 22803.6185505722. The cubic root of 520005019 is about 804.1477388919.

The spelling of 520005019 in words is "five hundred twenty million, five thousand, nineteen".