555128 has 32 divisors (see below), whose sum is σ = 1244160. Its totient is φ = 227040.

The previous prime is 555119. The next prime is 555143. The reversal of 555128 is 821555.

555128 is nontrivially palindromic in base 16.

555128 is an esthetic number in base 16, because in such base its adjacent digits differ by 1.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

555128 is an undulating number in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 555097 and 555106.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 555128.

It is an unprimeable number.

555128 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1073 + ... + 1503.

It is an arithmetic number, because the mean of its divisors is an integer number (38880).

2⁵⁵⁵¹²⁸ 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 555128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622080).

555128 is an abundant number, since it is smaller than the sum of its proper divisors (689032).

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

555128 is a wasteful number, since it uses less digits than its factorization.

555128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467 (or 463 counting only the distinct ones).

The product of its digits is 2000, while the sum is 26.

The square root of 555128 is about 745.0691243100. The cubic root of 555128 is about 82.1859748786.

The spelling of 555128 in words is "five hundred fifty-five thousand, one hundred twenty-eight".