10505560517 has 2 divisors, whose sum is σ = 10505560518. Its totient is φ = 10505560516.

The previous prime is 10505560441. The next prime is 10505560543. The reversal of 10505560517 is 71506550501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6209282401 + 4296278116 = 78799^2 + 65546^2 .

It is a cyclic number.

It is not a de Polignac number, because 10505560517 - 2¹² = 10505556421 is a prime.

It is a super-2 number, since 2×10505560517² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10505560217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5252780258 + 5252780259.

It is an arithmetic number, because the mean of its divisors is an integer number (5252780259).

Almost surely, 2^10505560517 is an apocalyptic number.

It is an amenable number.

10505560517 is a deficient number, since it is larger than the sum of its proper divisors (1).

10505560517 is an equidigital number, since it uses as much as digits as its factorization.

10505560517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26250, while the sum is 35.

The spelling of 10505560517 in words is "ten billion, five hundred five million, five hundred sixty thousand, five hundred seventeen".