6550128 has 60 divisors (see below), whose sum is σ = 19747000. Its totient is φ = 2014848.

The previous prime is 6550123. The next prime is 6550129. The reversal of 6550128 is 8210556.

6550128 is a `hidden beast` number, since 655 + 0 + 1 + 2 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6550123) 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, 123 + ... + 3621.

Almost surely, 2^6550128 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 6550128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9873500).

6550128 is an abundant number, since it is smaller than the sum of its proper divisors (13196872).

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

6550128 is a wasteful number, since it uses less digits than its factorization.

6550128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3526 (or 3517 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 6550128 is about 2559.3217851611. The cubic root of 6550128 is about 187.1040819157.

The spelling of 6550128 in words is "six million, five hundred fifty thousand, one hundred twenty-eight".