517002745465225 has 12 divisors (see below), whose sum is σ = 641157355897740. Its totient is φ = 413554485713600.

The previous prime is 517002745465189. The next prime is 517002745465231. The reversal of 517002745465225 is 522564547200715.

It can be written as a sum of positive squares in 6 ways, for example, as 1394033598864 + 515608711866361 = 1180692^2 + 22707019^2 .

It is not a de Polignac number, because 517002745465225 - 2³⁹ = 516452989651337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1192545406 + ... + 1192978855.

It is an arithmetic number, because the mean of its divisors is an integer number (53429779658145).

Almost surely, 2^{517002745465225} is an apocalyptic number.

It is an amenable number.

517002745465225 is a deficient number, since it is larger than the sum of its proper divisors (124154610432515).

517002745465225 is a wasteful number, since it uses less digits than its factorization.

517002745465225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2385532940 (or 2385532935 counting only the distinct ones).

The product of its (nonzero) digits is 23520000, while the sum is 55.

The spelling of 517002745465225 in words is "five hundred seventeen trillion, two billion, seven hundred forty-five million, four hundred sixty-five thousand, two hundred twenty-five".