55318343 has 2 divisors, whose sum is σ = 55318344. Its totient is φ = 55318342.

The previous prime is 55318337. The next prime is 55318387. The reversal of 55318343 is 34381355.

55318343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55318343 - 2¹² = 55314247 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55315343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27659171 + 27659172.

It is an arithmetic number, because the mean of its divisors is an integer number (27659172).

Almost surely, 2^55318343 is an apocalyptic number.

55318343 is a deficient number, since it is larger than the sum of its proper divisors (1).

55318343 is an equidigital number, since it uses as much as digits as its factorization.

55318343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 32.

The square root of 55318343 is about 7437.6302005410. The cubic root of 55318343 is about 381.0275582099.

Adding to 55318343 its reverse (34381355), we get a palindrome (89699698).

The spelling of 55318343 in words is "fifty-five million, three hundred eighteen thousand, three hundred forty-three".