554445209 has 2 divisors, whose sum is σ = 554445210. Its totient is φ = 554445208.

The previous prime is 554445193. The next prime is 554445211. The reversal of 554445209 is 902544455.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 509179225 + 45265984 = 22565^2 + 6728^2 .

It is a cyclic number.

It is not a de Polignac number, because 554445209 - 2⁴ = 554445193 is a prime.

Together with 554445211, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (554445239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277222604 + 277222605.

It is an arithmetic number, because the mean of its divisors is an integer number (277222605).

Almost surely, 2^554445209 is an apocalyptic number.

It is an amenable number.

554445209 is a deficient number, since it is larger than the sum of its proper divisors (1).

554445209 is an equidigital number, since it uses as much as digits as its factorization.

554445209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 38.

The square root of 554445209 is about 23546.6602515091. The cubic root of 554445209 is about 821.5226561593.

The spelling of 554445209 in words is "five hundred fifty-four million, four hundred forty-five thousand, two hundred nine".