10565505001 has 2 divisors, whose sum is σ = 10565505002. Its totient is φ = 10565505000.

The previous prime is 10565504941. The next prime is 10565505029. The reversal of 10565505001 is 10050556501.

It is an a-pointer prime, because the next prime (10565505029) can be obtained adding 10565505001 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6939056601 + 3626448400 = 83301^2 + 60220^2 .

It is a cyclic number.

It is not a de Polignac number, because 10565505001 - 2³³ = 1975570409 is a prime.

It is a super-2 number, since 2×10565505001² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10565502001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5282752500 + 5282752501.

It is an arithmetic number, because the mean of its divisors is an integer number (5282752501).

Almost surely, 2^10565505001 is an apocalyptic number.

It is an amenable number.

10565505001 is a deficient number, since it is larger than the sum of its proper divisors (1).

10565505001 is an equidigital number, since it uses as much as digits as its factorization.

10565505001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3750, while the sum is 28.

The spelling of 10565505001 in words is "ten billion, five hundred sixty-five million, five hundred five thousand, one".