23553495809 has 2 divisors, whose sum is σ = 23553495810. Its totient is φ = 23553495808.

The previous prime is 23553495727. The next prime is 23553495817. The reversal of 23553495809 is 90859435532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13352495809 + 10201000000 = 115553^2 + 101000^2 .

It is a cyclic number.

It is not a de Polignac number, because 23553495809 - 2¹² = 23553491713 is a prime.

It is not a weakly prime, because it can be changed into another prime (23553495839) 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, 11776747904 + 11776747905.

It is an arithmetic number, because the mean of its divisors is an integer number (11776747905).

Almost surely, 2^23553495809 is an apocalyptic number.

It is an amenable number.

23553495809 is a deficient number, since it is larger than the sum of its proper divisors (1).

23553495809 is an equidigital number, since it uses as much as digits as its factorization.

23553495809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832000, while the sum is 53.

The spelling of 23553495809 in words is "twenty-three billion, five hundred fifty-three million, four hundred ninety-five thousand, eight hundred nine".