549116287 has 2 divisors, whose sum is σ = 549116288. Its totient is φ = 549116286.

The previous prime is 549116273. The next prime is 549116333. The reversal of 549116287 is 782611945.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 549116287 - 2¹⁵ = 549083519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (549116257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274558143 + 274558144.

It is an arithmetic number, because the mean of its divisors is an integer number (274558144).

Almost surely, 2^549116287 is an apocalyptic number.

549116287 is a deficient number, since it is larger than the sum of its proper divisors (1).

549116287 is an equidigital number, since it uses as much as digits as its factorization.

549116287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 43.

The square root of 549116287 is about 23433.2304004378. The cubic root of 549116287 is about 818.8822203030.

The spelling of 549116287 in words is "five hundred forty-nine million, one hundred sixteen thousand, two hundred eighty-seven".