549596549 has 2 divisors, whose sum is σ = 549596550. Its totient is φ = 549596548.

The previous prime is 549596543. The next prime is 549596573. The reversal of 549596549 is 945695945.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 468722500 + 80874049 = 21650^2 + 8993^2 .

It is a cyclic number.

It is not a de Polignac number, because 549596549 - 2²⁰ = 548547973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 549596494 and 549596503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (549596543) 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, 274798274 + 274798275.

It is an arithmetic number, because the mean of its divisors is an integer number (274798275).

Almost surely, 2^549596549 is an apocalyptic number.

It is an amenable number.

549596549 is a deficient number, since it is larger than the sum of its proper divisors (1).

549596549 is an equidigital number, since it uses as much as digits as its factorization.

549596549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8748000, while the sum is 56.

The square root of 549596549 is about 23443.4756168961. The cubic root of 549596549 is about 819.1208846340.

The spelling of 549596549 in words is "five hundred forty-nine million, five hundred ninety-six thousand, five hundred forty-nine".