520705650097 has 2 divisors, whose sum is σ = 520705650098. Its totient is φ = 520705650096.

The previous prime is 520705650079. The next prime is 520705650151. The reversal of 520705650097 is 790056507025.

Together with previous prime (520705650079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 510047358976 + 10658291121 = 714176^2 + 103239^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520705650097 is a prime.

It is a super-2 number, since 2×520705650097² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (520705650797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260352825048 + 260352825049.

It is an arithmetic number, because the mean of its divisors is an integer number (260352825049).

Almost surely, 2^520705650097 is an apocalyptic number.

It is an amenable number.

520705650097 is a deficient number, since it is larger than the sum of its proper divisors (1).

520705650097 is an equidigital number, since it uses as much as digits as its factorization.

520705650097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 661500, while the sum is 46.

The spelling of 520705650097 in words is "five hundred twenty billion, seven hundred five million, six hundred fifty thousand, ninety-seven".