520523039 has 2 divisors, whose sum is σ = 520523040. Its totient is φ = 520523038.

The previous prime is 520523033. The next prime is 520523057. The reversal of 520523039 is 930325025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 520523039 - 2⁴ = 520523023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520523033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260261519 + 260261520.

It is an arithmetic number, because the mean of its divisors is an integer number (260261520).

Almost surely, 2^520523039 is an apocalyptic number.

520523039 is a deficient number, since it is larger than the sum of its proper divisors (1).

520523039 is an equidigital number, since it uses as much as digits as its factorization.

520523039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 520523039 is about 22814.9740083130. The cubic root of 520523039 is about 804.4146762919.

The spelling of 520523039 in words is "five hundred twenty million, five hundred twenty-three thousand, thirty-nine".