549977473 has 4 divisors (see below), whose sum is σ = 558186160. Its totient is φ = 541768788.

The previous prime is 549977471. The next prime is 549977501. The reversal of 549977473 is 374779945.

549977473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 549977473 - 2¹ = 549977471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (549977471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4104243 + ... + 4104376.

It is an arithmetic number, because the mean of its divisors is an integer number (139546540).

Almost surely, 2^549977473 is an apocalyptic number.

It is an amenable number.

549977473 is a deficient number, since it is larger than the sum of its proper divisors (8208687).

549977473 is an equidigital number, since it uses as much as digits as its factorization.

549977473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8208686.

The product of its digits is 6667920, while the sum is 55.

The square root of 549977473 is about 23451.5985169455. The cubic root of 549977473 is about 819.3100844781.

The spelling of 549977473 in words is "five hundred forty-nine million, nine hundred seventy-seven thousand, four hundred seventy-three".