12053454553 has 4 divisors (see below), whose sum is σ = 13775376640. Its totient is φ = 10331532468.

The previous prime is 12053454533. The next prime is 12053454601. The reversal of 12053454553 is 35545435021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35545435021 = 37 ⋅960687433.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12053454553 is a prime.

It is a super-2 number, since 2×12053454553² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12053454533) 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 in 3 ways as a sum of consecutive naturals, for example, 860961033 + ... + 860961046.

It is an arithmetic number, because the mean of its divisors is an integer number (3443844160).

Almost surely, 2^12053454553 is an apocalyptic number.

It is an amenable number.

12053454553 is a deficient number, since it is larger than the sum of its proper divisors (1721922087).

12053454553 is an equidigital number, since it uses as much as digits as its factorization.

12053454553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721922086.

The product of its (nonzero) digits is 180000, while the sum is 37.

Adding to 12053454553 its reverse (35545435021), we get a palindrome (47598889574).

The spelling of 12053454553 in words is "twelve billion, fifty-three million, four hundred fifty-four thousand, five hundred fifty-three".