12044512553 has 4 divisors (see below), whose sum is σ = 12433045248. Its totient is φ = 11655979860.

The previous prime is 12044512537. The next prime is 12044512567. The reversal of 12044512553 is 35521544021.

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: 35521544021 = 2293 ⋅15491297.

It is a cyclic number.

It is not a de Polignac number, because 12044512553 - 2⁴ = 12044512537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12044512573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194266301 + ... + 194266362.

It is an arithmetic number, because the mean of its divisors is an integer number (3108261312).

Almost surely, 2^12044512553 is an apocalyptic number.

It is an amenable number.

12044512553 is a deficient number, since it is larger than the sum of its proper divisors (388532695).

12044512553 is an equidigital number, since it uses as much as digits as its factorization.

12044512553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388532694.

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 12044512553 in words is "twelve billion, forty-four million, five hundred twelve thousand, five hundred fifty-three".