550222989 has 16 divisors (see below), whose sum is σ = 747333120. Its totient is φ = 359991360.

The previous prime is 550222987. The next prime is 550222991. The reversal of 550222989 is 989222055.

550222989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (550222987) and next prime (550222991).

It is not a de Polignac number, because 550222989 - 2¹ = 550222987 is a prime.

It is a super-3 number, since 3×550222989³ (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 550222989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550222987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84519 + ... + 90795.

It is an arithmetic number, because the mean of its divisors is an integer number (46708320).

Almost surely, 2^550222989 is an apocalyptic number.

It is an amenable number.

550222989 is a deficient number, since it is larger than the sum of its proper divisors (197110131).

550222989 is a wasteful number, since it uses less digits than its factorization.

550222989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6820.

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 550222989 is about 23456.8324587955. The cubic root of 550222989 is about 819.4319826888.

The spelling of 550222989 in words is "five hundred fifty million, two hundred twenty-two thousand, nine hundred eighty-nine".