550242128 has 60 divisors (see below), whose sum is σ = 1192289760. Its totient is φ = 245270016.

The previous prime is 550242101. The next prime is 550242169. The reversal of 550242128 is 821242055.

It is a self number, because there is not a number n which added to its sum of digits gives 550242128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84725 + ... + 90987.

It is an arithmetic number, because the mean of its divisors is an integer number (19871496).

Almost surely, 2^550242128 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 550242128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (596144880).

550242128 is an abundant number, since it is smaller than the sum of its proper divisors (642047632).

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

550242128 is a wasteful number, since it uses less digits than its factorization.

550242128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6324 (or 6301 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 550242128 is about 23457.2404174063. The cubic root of 550242128 is about 819.4414836410.

The spelling of 550242128 in words is "five hundred fifty million, two hundred forty-two thousand, one hundred twenty-eight".