549517289 has 2 divisors, whose sum is σ = 549517290. Its totient is φ = 549517288.

The previous prime is 549517277. The next prime is 549517307. The reversal of 549517289 is 982715945.

549517289 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., 310041664 + 239475625 = 17608^2 + 15475^2 .

It is a cyclic number.

It is not a de Polignac number, because 549517289 - 2⁴ = 549517273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (549517249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274758644 + 274758645.

It is an arithmetic number, because the mean of its divisors is an integer number (274758645).

Almost surely, 2^549517289 is an apocalyptic number.

It is an amenable number.

549517289 is a deficient number, since it is larger than the sum of its proper divisors (1).

549517289 is an equidigital number, since it uses as much as digits as its factorization.

549517289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 50.

The square root of 549517289 is about 23441.7851069410. The cubic root of 549517289 is about 819.0815062677.

The spelling of 549517289 in words is "five hundred forty-nine million, five hundred seventeen thousand, two hundred eighty-nine".