550123112 has 96 divisors (see below), whose sum is σ = 1364260800. Its totient is φ = 203005440.

The previous prime is 550123073. The next prime is 550123121. The reversal of 550123112 is 211321055.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126608 + ... + 130880.

It is an arithmetic number, because the mean of its divisors is an integer number (14211050).

Almost surely, 2^550123112 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 550123112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (682130400).

550123112 is an abundant number, since it is smaller than the sum of its proper divisors (814137688).

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

550123112 is a wasteful number, since it uses less digits than its factorization.

550123112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4327 (or 4312 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 550123112 is about 23454.7034089114. The cubic root of 550123112 is about 819.3823983310.

Adding to 550123112 its reverse (211321055), we get a palindrome (761444167).

The spelling of 550123112 in words is "five hundred fifty million, one hundred twenty-three thousand, one hundred twelve".