549117211 has 2 divisors, whose sum is σ = 549117212. Its totient is φ = 549117210.

The previous prime is 549117197. The next prime is 549117241. The reversal of 549117211 is 112711945.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 549117211 - 2⁷ = 549117083 is a prime.

It is a super-2 number, since 2×549117211² = 603059422832837042, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (549117241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274558605 + 274558606.

It is an arithmetic number, because the mean of its divisors is an integer number (274558606).

Almost surely, 2^549117211 is an apocalyptic number.

549117211 is a deficient number, since it is larger than the sum of its proper divisors (1).

549117211 is an equidigital number, since it uses as much as digits as its factorization.

549117211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 31.

The square root of 549117211 is about 23433.2501160210. The cubic root of 549117211 is about 818.8826796148.

The spelling of 549117211 in words is "five hundred forty-nine million, one hundred seventeen thousand, two hundred eleven".