55317233202443 has 4 divisors (see below), whose sum is σ = 55317248217000. Its totient is φ = 55317218187888.

The previous prime is 55317233202421. The next prime is 55317233202449. The reversal of 55317233202443 is 34420233271355.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55317233202443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55317233202394 and 55317233202403.

It is not an unprimeable number, because it can be changed into a prime (55317233202449) 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, 2222471 + ... + 10750527.

It is an arithmetic number, because the mean of its divisors is an integer number (13829312054250).

Almost surely, 2^{55317233202443} is an apocalyptic number.

55317233202443 is a deficient number, since it is larger than the sum of its proper divisors (15014557).

55317233202443 is an equidigital number, since it uses as much as digits as its factorization.

55317233202443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15014556.

The product of its (nonzero) digits is 1814400, while the sum is 44.

Adding to 55317233202443 its reverse (34420233271355), we get a palindrome (89737466473798).

The spelling of 55317233202443 in words is "fifty-five trillion, three hundred seventeen billion, two hundred thirty-three million, two hundred two thousand, four hundred forty-three".