549543249 has 24 divisors (see below), whose sum is σ = 805677600. Its totient is φ = 360899712.

The previous prime is 549543233. The next prime is 549543257. The reversal of 549543249 is 942345945.

It is not a de Polignac number, because 549543249 - 2⁴ = 549543233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (549543259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 322602 + ... + 324300.

It is an arithmetic number, because the mean of its divisors is an integer number (33569900).

Almost surely, 2^549543249 is an apocalyptic number.

It is an amenable number.

549543249 is a deficient number, since it is larger than the sum of its proper divisors (256134351).

549543249 is a wasteful number, since it uses less digits than its factorization.

549543249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221 (or 2218 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The square root of 549543249 is about 23442.3388124991. The cubic root of 549543249 is about 819.0944042672.

The spelling of 549543249 in words is "five hundred forty-nine million, five hundred forty-three thousand, two hundred forty-nine".