550999404 has 36 divisors (see below), whose sum is σ = 1410441760. Its totient is φ = 181340640.

The previous prime is 550999403. The next prime is 550999409. The reversal of 550999404 is 404999055.

550999404 is a `hidden beast` number, since 550 + 9 + 9 + 94 + 0 + 4 = 666.

550999404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 550999404.

It is not an unprimeable number, because it can be changed into a prime (550999403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94027 + ... + 99714.

Almost surely, 2^550999404 is an apocalyptic number.

It is an amenable number.

550999404 is an abundant number, since it is smaller than the sum of its proper divisors (859442356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

550999404 is a wasteful number, since it uses less digits than its factorization.

550999404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193830 (or 193825 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 550999404 is about 23473.3764933808. The cubic root of 550999404 is about 819.8172327149.

The spelling of 550999404 in words is "five hundred fifty million, nine hundred ninety-nine thousand, four hundred four".