549799541 has 2 divisors, whose sum is σ = 549799542. Its totient is φ = 549799540.

The previous prime is 549799531. The next prime is 549799619. The reversal of 549799541 is 145997945.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 526518916 + 23280625 = 22946^2 + 4825^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-549799541 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (549799501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274899770 + 274899771.

It is an arithmetic number, because the mean of its divisors is an integer number (274899771).

Almost surely, 2^549799541 is an apocalyptic number.

It is an amenable number.

549799541 is a deficient number, since it is larger than the sum of its proper divisors (1).

549799541 is an equidigital number, since it uses as much as digits as its factorization.

549799541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2041200, while the sum is 53.

The square root of 549799541 is about 23447.8046093872. The cubic root of 549799541 is about 819.2217189157.

The spelling of 549799541 in words is "five hundred forty-nine million, seven hundred ninety-nine thousand, five hundred forty-one".