55443444243 has 12 divisors (see below), whose sum is σ = 81255957384. Its totient is φ = 33602087200.

The previous prime is 55443444239. The next prime is 55443444257. The reversal of 55443444243 is 34244434455.

It is not a de Polignac number, because 55443444243 - 2² = 55443444239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55443444195 and 55443444204.

It is not an unprimeable number, because it can be changed into a prime (55443444223) 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 11 ways as a sum of consecutive naturals, for example, 76368018 + ... + 76368743.

It is an arithmetic number, because the mean of its divisors is an integer number (6771329782).

Almost surely, 2^55443444243 is an apocalyptic number.

55443444243 is a deficient number, since it is larger than the sum of its proper divisors (25812513141).

55443444243 is a wasteful number, since it uses less digits than its factorization.

55443444243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152736786 (or 152736775 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 42.

Adding to 55443444243 its reverse (34244434455), we get a palindrome (89687878698).

The spelling of 55443444243 in words is "fifty-five billion, four hundred forty-three million, four hundred forty-four thousand, two hundred forty-three".