549339863 has 2 divisors, whose sum is σ = 549339864. Its totient is φ = 549339862.

The previous prime is 549339839. The next prime is 549339893. The reversal of 549339863 is 368933945.

549339863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 549339863 - 2²⁰ = 548291287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (549339893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274669931 + 274669932.

It is an arithmetic number, because the mean of its divisors is an integer number (274669932).

Almost surely, 2^549339863 is an apocalyptic number.

549339863 is a deficient number, since it is larger than the sum of its proper divisors (1).

549339863 is an equidigital number, since it uses as much as digits as its factorization.

549339863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2099520, while the sum is 50.

The square root of 549339863 is about 23438.0004053247. Note that the first 3 decimals coincide. The cubic root of 549339863 is about 818.9933428306.

The spelling of 549339863 in words is "five hundred forty-nine million, three hundred thirty-nine thousand, eight hundred sixty-three".