520012529 has 2 divisors, whose sum is σ = 520012530. Its totient is φ = 520012528.

The previous prime is 520012517. The next prime is 520012547. The reversal of 520012529 is 925210025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 357399025 + 162613504 = 18905^2 + 12752^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520012529 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 520012498 and 520012507.

It is not a weakly prime, because it can be changed into another prime (520012579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260006264 + 260006265.

It is an arithmetic number, because the mean of its divisors is an integer number (260006265).

Almost surely, 2^520012529 is an apocalyptic number.

It is an amenable number.

520012529 is a deficient number, since it is larger than the sum of its proper divisors (1).

520012529 is an equidigital number, since it uses as much as digits as its factorization.

520012529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 520012529 is about 22803.7832168261. The cubic root of 520012529 is about 804.1516100856.

The spelling of 520012529 in words is "five hundred twenty million, twelve thousand, five hundred twenty-nine".