549011 has 2 divisors, whose sum is σ = 549012. Its totient is φ = 549010.

The previous prime is 549001. The next prime is 549013. The reversal of 549011 is 110945.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-549011 is a prime.

It is a Sophie Germain prime.

Together with 549013, it forms a pair of twin primes.

It is a Chen prime.

It is a nialpdrome in base 7.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 549011.

It is not a weakly prime, because it can be changed into another prime (549013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274505 + 274506.

It is an arithmetic number, because the mean of its divisors is an integer number (274506).

2⁵⁴⁹⁰¹¹ is an apocalyptic number.

549011 is a deficient number, since it is larger than the sum of its proper divisors (1).

549011 is an equidigital number, since it uses as much as digits as its factorization.

549011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 549011 is about 740.9527650262. The cubic root of 549011 is about 81.8829879742.

Adding to 549011 its reverse (110945), we get a palindrome (659956).

The spelling of 549011 in words is "five hundred forty-nine thousand, eleven".