12254043553 has 4 divisors (see below), whose sum is σ = 12255987888. Its totient is φ = 12252099220.

The previous prime is 12254043533. The next prime is 12254043601. The reversal of 12254043553 is 35534045221.

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: 35534045221 = 1427 ⋅24901223.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12254043553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12254043533) 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, 962683 + ... + 975328.

It is an arithmetic number, because the mean of its divisors is an integer number (3063996972).

Almost surely, 2^12254043553 is an apocalyptic number.

It is an amenable number.

12254043553 is a deficient number, since it is larger than the sum of its proper divisors (1944335).

12254043553 is an equidigital number, since it uses as much as digits as its factorization.

12254043553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944334.

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 12254043553 its reverse (35534045221), we get a palindrome (47788088774).

The spelling of 12254043553 in words is "twelve billion, two hundred fifty-four million, forty-three thousand, five hundred fifty-three".