10505505539 has 2 divisors, whose sum is σ = 10505505540. Its totient is φ = 10505505538.

The previous prime is 10505505523. The next prime is 10505505551. The reversal of 10505505539 is 93550550501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10505505539 - 2⁴ = 10505505523 is a prime.

It is a super-2 number, since 2×10505505539² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (10505505509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5252752769 + 5252752770.

It is an arithmetic number, because the mean of its divisors is an integer number (5252752770).

Almost surely, 2^10505505539 is an apocalyptic number.

10505505539 is a deficient number, since it is larger than the sum of its proper divisors (1).

10505505539 is an equidigital number, since it uses as much as digits as its factorization.

10505505539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84375, while the sum is 38.

The spelling of 10505505539 in words is "ten billion, five hundred five million, five hundred five thousand, five hundred thirty-nine".