549888945 has 64 divisors (see below), whose sum is σ = 951312384. Its totient is φ = 270547200.

The previous prime is 549888917. The next prime is 549888967.

549888945 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 549888945 - 2²² = 545694641 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1498152 + ... + 1498518.

It is an arithmetic number, because the mean of its divisors is an integer number (14864256).

Almost surely, 2^549888945 is an apocalyptic number.

It is an amenable number.

549888945 is a deficient number, since it is larger than the sum of its proper divisors (401423439).

549888945 is a wasteful number, since it uses less digits than its factorization.

549888945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542.

The product of its digits is 16588800, while the sum is 60.

The square root of 549888945 is about 23449.7109790291. The cubic root of 549888945 is about 819.2661216015.

The spelling of 549888945 in words is "five hundred forty-nine million, eight hundred eighty-eight thousand, nine hundred forty-five".