520330037 has 2 divisors, whose sum is σ = 520330038. Its totient is φ = 520330036.

The previous prime is 520329949. The next prime is 520330039. The reversal of 520330037 is 730033025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 378458116 + 141871921 = 19454^2 + 11911^2 .

It is a cyclic number.

It is not a de Polignac number, because 520330037 - 2²⁰ = 519281461 is a prime.

Together with 520330039, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 520329994 and 520330021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520330039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260165018 + 260165019.

It is an arithmetic number, because the mean of its divisors is an integer number (260165019).

Almost surely, 2^520330037 is an apocalyptic number.

It is an amenable number.

520330037 is a deficient number, since it is larger than the sum of its proper divisors (1).

520330037 is an equidigital number, since it uses as much as digits as its factorization.

520330037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 23.

The square root of 520330037 is about 22810.7438940513. The cubic root of 520330037 is about 804.3152424390.

The spelling of 520330037 in words is "five hundred twenty million, three hundred thirty thousand, thirty-seven".