54805543439 has 2 divisors, whose sum is σ = 54805543440. Its totient is φ = 54805543438.

The previous prime is 54805543369. The next prime is 54805543501. The reversal of 54805543439 is 93434550845.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54805543439 - 2³² = 50510576143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54805543139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27402771719 + 27402771720.

It is an arithmetic number, because the mean of its divisors is an integer number (27402771720).

Almost surely, 2^54805543439 is an apocalyptic number.

54805543439 is a deficient number, since it is larger than the sum of its proper divisors (1).

54805543439 is an equidigital number, since it uses as much as digits as its factorization.

54805543439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184000, while the sum is 50.

The spelling of 54805543439 in words is "fifty-four billion, eight hundred five million, five hundred forty-three thousand, four hundred thirty-nine".