12443555255 has 4 divisors (see below), whose sum is σ = 14932266312. Its totient is φ = 9954844200.

The previous prime is 12443555251. The next prime is 12443555287. The reversal of 12443555255 is 55255534421.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12443555255 - 2² = 12443555251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443555251) 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, 1244355521 + ... + 1244355530.

It is an arithmetic number, because the mean of its divisors is an integer number (3733066578).

Almost surely, 2^12443555255 is an apocalyptic number.

12443555255 is a deficient number, since it is larger than the sum of its proper divisors (2488711057).

12443555255 is an equidigital number, since it uses as much as digits as its factorization.

12443555255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2488711056.

The product of its digits is 600000, while the sum is 41.

The spelling of 12443555255 in words is "twelve billion, four hundred forty-three million, five hundred fifty-five thousand, two hundred fifty-five".