549883478 has 4 divisors (see below), whose sum is σ = 824825220. Its totient is φ = 274941738.

The previous prime is 549883459. The next prime is 549883483. The reversal of 549883478 is 874388945.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 137470868 + ... + 137470871.

It is an arithmetic number, because the mean of its divisors is an integer number (206206305).

Almost surely, 2^549883478 is an apocalyptic number.

549883478 is a deficient number, since it is larger than the sum of its proper divisors (274941742).

549883478 is a wasteful number, since it uses less digits than its factorization.

549883478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274941741.

The product of its digits is 7741440, while the sum is 56.

The square root of 549883478 is about 23449.5944101385. The cubic root of 549883478 is about 819.2634065426.

The spelling of 549883478 in words is "five hundred forty-nine million, eight hundred eighty-three thousand, four hundred seventy-eight".