55243442443 has 8 divisors (see below), whose sum is σ = 63137829888. Its totient is φ = 47349671784.

The previous prime is 55243442389. The next prime is 55243442467. The reversal of 55243442443 is 34424434255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55243442443 - 2²⁵ = 55209888011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55243442396 and 55243442405.

It is not an unprimeable number, because it can be changed into a prime (55243442143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57030 + ... + 337252.

It is an arithmetic number, because the mean of its divisors is an integer number (7892228736).

Almost surely, 2^55243442443 is an apocalyptic number.

55243442443 is a deficient number, since it is larger than the sum of its proper divisors (7894387445).

55243442443 is a wasteful number, since it uses less digits than its factorization.

55243442443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308393.

The product of its digits is 921600, while the sum is 40.

Adding to 55243442443 its reverse (34424434255), we get a palindrome (89667876698).

The spelling of 55243442443 in words is "fifty-five billion, two hundred forty-three million, four hundred forty-two thousand, four hundred forty-three".