520524539 has 2 divisors, whose sum is σ = 520524540. Its totient is φ = 520524538.

The previous prime is 520524533. The next prime is 520524617. The reversal of 520524539 is 935425025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 520524539 - 2⁸ = 520524283 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 520524499 and 520524508.

It is not a weakly prime, because it can be changed into another prime (520524533) 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, 260262269 + 260262270.

It is an arithmetic number, because the mean of its divisors is an integer number (260262270).

Almost surely, 2^520524539 is an apocalyptic number.

520524539 is a deficient number, since it is larger than the sum of its proper divisors (1).

520524539 is an equidigital number, since it uses as much as digits as its factorization.

520524539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 520524539 is about 22815.0068814366. The cubic root of 520524539 is about 804.4154489896.

The spelling of 520524539 in words is "five hundred twenty million, five hundred twenty-four thousand, five hundred thirty-nine".