520265693 has 2 divisors, whose sum is σ = 520265694. Its totient is φ = 520265692.

The previous prime is 520265659. The next prime is 520265747. The reversal of 520265693 is 396562025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 490268164 + 29997529 = 22142^2 + 5477^2 .

It is a cyclic number.

It is not a de Polignac number, because 520265693 - 2¹⁴ = 520249309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520265633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260132846 + 260132847.

It is an arithmetic number, because the mean of its divisors is an integer number (260132847).

Almost surely, 2^520265693 is an apocalyptic number.

It is an amenable number.

520265693 is a deficient number, since it is larger than the sum of its proper divisors (1).

520265693 is an equidigital number, since it uses as much as digits as its factorization.

520265693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 520265693 is about 22809.3334624228. Note that the first 3 decimals coincide. The cubic root of 520265693 is about 804.2820872044.

The spelling of 520265693 in words is "five hundred twenty million, two hundred sixty-five thousand, six hundred ninety-three".