549511216 has 40 divisors (see below), whose sum is σ = 1134641664. Its totient is φ = 257209920.

The previous prime is 549511199. The next prime is 549511229. The reversal of 549511216 is 612115945.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1411 + ... + 33181.

Almost surely, 2^549511216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 549511216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (567320832).

549511216 is an abundant number, since it is smaller than the sum of its proper divisors (585130448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

549511216 is a wasteful number, since it uses less digits than its factorization.

549511216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31849 (or 31843 counting only the distinct ones).

The product of its digits is 10800, while the sum is 34.

The square root of 549511216 is about 23441.6555729326. The cubic root of 549511216 is about 819.0784888920.

The spelling of 549511216 in words is "five hundred forty-nine million, five hundred eleven thousand, two hundred sixteen".