23505536563 has 2 divisors, whose sum is σ = 23505536564. Its totient is φ = 23505536562.

The previous prime is 23505536531. The next prime is 23505536569. The reversal of 23505536563 is 36563550532.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23505536563 - 2⁵ = 23505536531 is a prime.

It is a super-2 number, since 2×23505536563² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23505536569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11752768281 + 11752768282.

It is an arithmetic number, because the mean of its divisors is an integer number (11752768282).

Almost surely, 2^23505536563 is an apocalyptic number.

23505536563 is a deficient number, since it is larger than the sum of its proper divisors (1).

23505536563 is an equidigital number, since it uses as much as digits as its factorization.

23505536563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1215000, while the sum is 43.

The spelling of 23505536563 in words is "twenty-three billion, five hundred five million, five hundred thirty-six thousand, five hundred sixty-three".