520512697 has 2 divisors, whose sum is σ = 520512698. Its totient is φ = 520512696.

The previous prime is 520512689. The next prime is 520512709. The reversal of 520512697 is 796215025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 399160441 + 121352256 = 19979^2 + 11016^2 .

It is a cyclic number.

It is not a de Polignac number, because 520512697 - 2³ = 520512689 is a prime.

It is not a weakly prime, because it can be changed into another prime (520512607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260256348 + 260256349.

It is an arithmetic number, because the mean of its divisors is an integer number (260256349).

Almost surely, 2^520512697 is an apocalyptic number.

It is an amenable number.

520512697 is a deficient number, since it is larger than the sum of its proper divisors (1).

520512697 is an equidigital number, since it uses as much as digits as its factorization.

520512697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 520512697 is about 22814.7473577947. The cubic root of 520512697 is about 804.4093487585.

The spelling of 520512697 in words is "five hundred twenty million, five hundred twelve thousand, six hundred ninety-seven".