520275132709 has 2 divisors, whose sum is σ = 520275132710. Its totient is φ = 520275132708.

The previous prime is 520275132511. The next prime is 520275132721. The reversal of 520275132709 is 907231572025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 306137570209 + 214137562500 = 553297^2 + 462750^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520275132709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520275132739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260137566354 + 260137566355.

It is an arithmetic number, because the mean of its divisors is an integer number (260137566355).

Almost surely, 2^520275132709 is an apocalyptic number.

It is an amenable number.

520275132709 is a deficient number, since it is larger than the sum of its proper divisors (1).

520275132709 is an equidigital number, since it uses as much as digits as its factorization.

520275132709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264600, while the sum is 43.

The spelling of 520275132709 in words is "five hundred twenty billion, two hundred seventy-five million, one hundred thirty-two thousand, seven hundred nine".