549419985 has 24 divisors (see below), whose sum is σ = 967944744. Its totient is φ = 288218880.

The previous prime is 549419953. The next prime is 549419999. The reversal of 549419985 is 589914945.

549419985 is a `hidden beast` number, since 549 + 4 + 1 + 9 + 98 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 173889 + 549246096 = 417^2 + 23436^2 .

It is not a de Polignac number, because 549419985 - 2⁵ = 549419953 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97332 + ... + 102821.

It is an arithmetic number, because the mean of its divisors is an integer number (40331031).

Almost surely, 2^549419985 is an apocalyptic number.

It is an amenable number.

549419985 is a deficient number, since it is larger than the sum of its proper divisors (418524759).

549419985 is a wasteful number, since it uses less digits than its factorization.

549419985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200225 (or 200222 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 54.

The square root of 549419985 is about 23439.7095758459. The cubic root of 549419985 is about 819.0331580094.

The spelling of 549419985 in words is "five hundred forty-nine million, four hundred nineteen thousand, nine hundred eighty-five".