550730844 has 72 divisors (see below), whose sum is σ = 1501914960. Its totient is φ = 169508352.

The previous prime is 550730833. The next prime is 550730849. The reversal of 550730844 is 448037055.

550730844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 550730799 and 550730808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550730849) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23947 + ... + 40925.

It is an arithmetic number, because the mean of its divisors is an integer number (20859930).

Almost surely, 2^550730844 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550730844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (750957480).

550730844 is an abundant number, since it is smaller than the sum of its proper divisors (951184116).

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

550730844 is a wasteful number, since it uses less digits than its factorization.

550730844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17059 (or 17054 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 550730844 is about 23467.6552727366. The cubic root of 550730844 is about 819.6840166625.

Adding to 550730844 its reverse (448037055), we get a palindrome (998767899).

The spelling of 550730844 in words is "five hundred fifty million, seven hundred thirty thousand, eight hundred forty-four".