549799049 has 2 divisors, whose sum is σ = 549799050. Its totient is φ = 549799048.

The previous prime is 549799031. The next prime is 549799069. The reversal of 549799049 is 940997945.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 534534400 + 15264649 = 23120^2 + 3907^2 .

It is a cyclic number.

It is not a de Polignac number, because 549799049 - 2²⁴ = 533021833 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 549798985 and 549799003.

It is not a weakly prime, because it can be changed into another prime (549799069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274899524 + 274899525.

It is an arithmetic number, because the mean of its divisors is an integer number (274899525).

Almost surely, 2^549799049 is an apocalyptic number.

It is an amenable number.

549799049 is a deficient number, since it is larger than the sum of its proper divisors (1).

549799049 is an equidigital number, since it uses as much as digits as its factorization.

549799049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3674160, while the sum is 56.

The square root of 549799049 is about 23447.7941179975. The cubic root of 549799049 is about 819.2214745495.

The spelling of 549799049 in words is "five hundred forty-nine million, seven hundred ninety-nine thousand, forty-nine".