549866671 has 16 divisors (see below), whose sum is σ = 573281280. Its totient is φ = 527012640.

The previous prime is 549866659. The next prime is 549866729. The reversal of 549866671 is 176668945.

It is a cyclic number.

It is not a de Polignac number, because 549866671 - 2¹³ = 549858479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549866171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1187386 + ... + 1187848.

It is an arithmetic number, because the mean of its divisors is an integer number (35830080).

Almost surely, 2^549866671 is an apocalyptic number.

549866671 is a deficient number, since it is larger than the sum of its proper divisors (23414609).

549866671 is a wasteful number, since it uses less digits than its factorization.

549866671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966.

The product of its digits is 2177280, while the sum is 52.

The square root of 549866671 is about 23449.2360429930. The cubic root of 549866671 is about 819.2550596225.

The spelling of 549866671 in words is "five hundred forty-nine million, eight hundred sixty-six thousand, six hundred seventy-one".