520783013 has 2 divisors, whose sum is σ = 520783014. Its totient is φ = 520783012.

The previous prime is 520782979. The next prime is 520783031. The reversal of 520783013 is 310387025.

Together with next prime (520783031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 410994529 + 109788484 = 20273^2 + 10478^2 .

It is a cyclic number.

It is not a de Polignac number, because 520783013 - 2¹⁴ = 520766629 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_27391610 and since 520783013 and 27391610 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520783063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260391506 + 260391507.

It is an arithmetic number, because the mean of its divisors is an integer number (260391507).

Almost surely, 2^520783013 is an apocalyptic number.

It is an amenable number.

520783013 is a deficient number, since it is larger than the sum of its proper divisors (1).

520783013 is an equidigital number, since it uses as much as digits as its factorization.

520783013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 520783013 is about 22820.6707394853. The cubic root of 520783013 is about 804.5485750048.

The spelling of 520783013 in words is "five hundred twenty million, seven hundred eighty-three thousand, thirteen".