549457211 has 2 divisors, whose sum is σ = 549457212. Its totient is φ = 549457210.

The previous prime is 549457199. The next prime is 549457217. The reversal of 549457211 is 112754945.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-549457211 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (549457217) 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, 274728605 + 274728606.

It is an arithmetic number, because the mean of its divisors is an integer number (274728606).

Almost surely, 2^549457211 is an apocalyptic number.

549457211 is a deficient number, since it is larger than the sum of its proper divisors (1).

549457211 is an equidigital number, since it uses as much as digits as its factorization.

549457211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 38.

The square root of 549457211 is about 23440.5036422002. The cubic root of 549457211 is about 819.0516554798.

The spelling of 549457211 in words is "five hundred forty-nine million, four hundred fifty-seven thousand, two hundred eleven".