550005489 has 12 divisors (see below), whose sum is σ = 866675472. Its totient is φ = 333336600.

The previous prime is 550005473. The next prime is 550005497. The reversal of 550005489 is 984500055.

It is a happy number.

It is not a de Polignac number, because 550005489 - 2⁴ = 550005473 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (550005409) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2777707 + ... + 2777904.

It is an arithmetic number, because the mean of its divisors is an integer number (72222956).

Almost surely, 2^550005489 is an apocalyptic number.

It is an amenable number.

550005489 is a deficient number, since it is larger than the sum of its proper divisors (316669983).

550005489 is a wasteful number, since it uses less digits than its factorization.

550005489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555628 (or 5555625 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 550005489 is about 23452.1958246984. The cubic root of 550005489 is about 819.3239962003.

The spelling of 550005489 in words is "five hundred fifty million, five thousand, four hundred eighty-nine".