549111449 has 2 divisors, whose sum is σ = 549111450. Its totient is φ = 549111448.

The previous prime is 549111443. The next prime is 549111503. The reversal of 549111449 is 944111945.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 536756224 + 12355225 = 23168^2 + 3515^2 .

It is a cyclic number.

It is not a de Polignac number, because 549111449 - 2²⁴ = 532334233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (549111443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274555724 + 274555725.

It is an arithmetic number, because the mean of its divisors is an integer number (274555725).

Almost surely, 2^549111449 is an apocalyptic number.

It is an amenable number.

549111449 is a deficient number, since it is larger than the sum of its proper divisors (1).

549111449 is an equidigital number, since it uses as much as digits as its factorization.

549111449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 38.

The square root of 549111449 is about 23433.1271707384. The cubic root of 549111449 is about 818.8798153699.

The spelling of 549111449 in words is "five hundred forty-nine million, one hundred eleven thousand, four hundred forty-nine".