54443253217 has 2 divisors, whose sum is σ = 54443253218. Its totient is φ = 54443253216.

The previous prime is 54443253199. The next prime is 54443253329. The reversal of 54443253217 is 71235234445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42511841856 + 11931411361 = 206184^2 + 109231^2 .

It is a cyclic number.

It is not a de Polignac number, because 54443253217 - 2¹¹ = 54443251169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54443253217.

It is not a weakly prime, because it can be changed into another prime (54443250217) 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, 27221626608 + 27221626609.

It is an arithmetic number, because the mean of its divisors is an integer number (27221626609).

Almost surely, 2^54443253217 is an apocalyptic number.

It is an amenable number.

54443253217 is a deficient number, since it is larger than the sum of its proper divisors (1).

54443253217 is an equidigital number, since it uses as much as digits as its factorization.

54443253217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 403200, while the sum is 40.

The spelling of 54443253217 in words is "fifty-four billion, four hundred forty-three million, two hundred fifty-three thousand, two hundred seventeen".