549055589 has 2 divisors, whose sum is σ = 549055590. Its totient is φ = 549055588.

The previous prime is 549055561. The next prime is 549055649. The reversal of 549055589 is 985550945.

549055589 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., 337934689 + 211120900 = 18383^2 + 14530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-549055589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (549055489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274527794 + 274527795.

It is an arithmetic number, because the mean of its divisors is an integer number (274527795).

Almost surely, 2^549055589 is an apocalyptic number.

It is an amenable number.

549055589 is a deficient number, since it is larger than the sum of its proper divisors (1).

549055589 is an equidigital number, since it uses as much as digits as its factorization.

549055589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620000, while the sum is 50.

The square root of 549055589 is about 23431.9352380464. The cubic root of 549055589 is about 818.8520467644.

The spelling of 549055589 in words is "five hundred forty-nine million, fifty-five thousand, five hundred eighty-nine".