549481163 has 16 divisors (see below), whose sum is σ = 687757824. Its totient is φ = 426485760.

The previous prime is 549481111. The next prime is 549481171. The reversal of 549481163 is 361184945.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-549481163 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 549481163.

It is not an unprimeable number, because it can be changed into a prime (549481963) 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, 5906 + ... + 33672.

It is an arithmetic number, because the mean of its divisors is an integer number (42984864).

Almost surely, 2^549481163 is an apocalyptic number.

549481163 is a deficient number, since it is larger than the sum of its proper divisors (138276661).

549481163 is a wasteful number, since it uses less digits than its factorization.

549481163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28042.

The product of its digits is 103680, while the sum is 41.

The square root of 549481163 is about 23441.0145471564. The cubic root of 549481163 is about 819.0635567039.

The spelling of 549481163 in words is "five hundred forty-nine million, four hundred eighty-one thousand, one hundred sixty-three".