549884243 has 2 divisors, whose sum is σ = 549884244. Its totient is φ = 549884242.

The previous prime is 549884239. The next prime is 549884267. The reversal of 549884243 is 342488945.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 549884243 - 2² = 549884239 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (549884233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274942121 + 274942122.

It is an arithmetic number, because the mean of its divisors is an integer number (274942122).

Almost surely, 2^549884243 is an apocalyptic number.

549884243 is a deficient number, since it is larger than the sum of its proper divisors (1).

549884243 is an equidigital number, since it uses as much as digits as its factorization.

549884243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1105920, while the sum is 47.

The square root of 549884243 is about 23449.6107217156. The cubic root of 549884243 is about 819.2637864632.

The spelling of 549884243 in words is "five hundred forty-nine million, eight hundred eighty-four thousand, two hundred forty-three".