520533268513 has 2 divisors, whose sum is σ = 520533268514. Its totient is φ = 520533268512.

The previous prime is 520533268511. The next prime is 520533268559. The reversal of 520533268513 is 315862335025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 497443858209 + 23089410304 = 705297^2 + 151952^2 .

It is a cyclic number.

It is not a de Polignac number, because 520533268513 - 2¹ = 520533268511 is a prime.

Together with 520533268511, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 520533268513.

It is not a weakly prime, because it can be changed into another prime (520533268511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260266634256 + 260266634257.

It is an arithmetic number, because the mean of its divisors is an integer number (260266634257).

Almost surely, 2^520533268513 is an apocalyptic number.

It is an amenable number.

520533268513 is a deficient number, since it is larger than the sum of its proper divisors (1).

520533268513 is an equidigital number, since it uses as much as digits as its factorization.

520533268513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 520533268513 in words is "five hundred twenty billion, five hundred thirty-three million, two hundred sixty-eight thousand, five hundred thirteen".