54554166209 has 2 divisors, whose sum is σ = 54554166210. Its totient is φ = 54554166208.

The previous prime is 54554166193. The next prime is 54554166253. The reversal of 54554166209 is 90266145545.

54554166209 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 can be written as a sum of positive squares in only one way, i.e., 52881601600 + 1672564609 = 229960^2 + 40897^2 .

It is a cyclic number.

It is not a de Polignac number, because 54554166209 - 2⁴ = 54554166193 is a prime.

It is not a weakly prime, because it can be changed into another prime (54554166259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27277083104 + 27277083105.

It is an arithmetic number, because the mean of its divisors is an integer number (27277083105).

Almost surely, 2^54554166209 is an apocalyptic number.

It is an amenable number.

54554166209 is a deficient number, since it is larger than the sum of its proper divisors (1).

54554166209 is an equidigital number, since it uses as much as digits as its factorization.

54554166209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 54554166209 in words is "fifty-four billion, five hundred fifty-four million, one hundred sixty-six thousand, two hundred nine".