549166099 has 4 divisors (see below), whose sum is σ = 564008464. Its totient is φ = 534323736.

The previous prime is 549166087. The next prime is 549166117. The reversal of 549166099 is 990661945.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 549166099 - 2⁵ = 549166067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (549166039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7421127 + ... + 7421200.

It is an arithmetic number, because the mean of its divisors is an integer number (141002116).

Almost surely, 2^549166099 is an apocalyptic number.

549166099 is a deficient number, since it is larger than the sum of its proper divisors (14842365).

549166099 is a wasteful number, since it uses less digits than its factorization.

549166099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14842364.

The product of its (nonzero) digits is 524880, while the sum is 49.

The square root of 549166099 is about 23434.2932259541. The cubic root of 549166099 is about 818.9069806490.

The spelling of 549166099 in words is "five hundred forty-nine million, one hundred sixty-six thousand, ninety-nine".