23453571553 has 2 divisors, whose sum is σ = 23453571554. Its totient is φ = 23453571552.

The previous prime is 23453571511. The next prime is 23453571601. The reversal of 23453571553 is 35517535432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19630251664 + 3823319889 = 140108^2 + 61833^2 .

It is a cyclic number.

It is not a de Polignac number, because 23453571553 - 2²¹ = 23451474401 is a prime.

It is not a weakly prime, because it can be changed into another prime (23453571353) 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, 11726785776 + 11726785777.

It is an arithmetic number, because the mean of its divisors is an integer number (11726785777).

Almost surely, 2^23453571553 is an apocalyptic number.

It is an amenable number.

23453571553 is a deficient number, since it is larger than the sum of its proper divisors (1).

23453571553 is an equidigital number, since it uses as much as digits as its factorization.

23453571553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 945000, while the sum is 43.

The spelling of 23453571553 in words is "twenty-three billion, four hundred fifty-three million, five hundred seventy-one thousand, five hundred fifty-three".