12454311553 has 4 divisors (see below), whose sum is σ = 12464065620. Its totient is φ = 12444557488.

The previous prime is 12454311547. The next prime is 12454311557. The reversal of 12454311553 is 35511345421.

12454311553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35511345421 = 241 ⋅147349981.

It can be written as a sum of positive squares in 2 ways, for example, as 6030609649 + 6423701904 = 77657^2 + 80148^2 .

It is a cyclic number.

It is not a de Polignac number, because 12454311553 - 2³³ = 3864376961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12454311557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4875118 + ... + 4877671.

It is an arithmetic number, because the mean of its divisors is an integer number (3116016405).

Almost surely, 2^12454311553 is an apocalyptic number.

It is an amenable number.

12454311553 is a deficient number, since it is larger than the sum of its proper divisors (9754067).

12454311553 is an equidigital number, since it uses as much as digits as its factorization.

12454311553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9754066.

The product of its digits is 36000, while the sum is 34.

Adding to 12454311553 its reverse (35511345421), we get a palindrome (47965656974).

The spelling of 12454311553 in words is "twelve billion, four hundred fifty-four million, three hundred eleven thousand, five hundred fifty-three".