555872 has 24 divisors (see below), whose sum is σ = 1134000. Its totient is φ = 267904.

The previous prime is 555871. The next prime is 555931. The reversal of 555872 is 278555.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 629 + ... + 1227.

It is an arithmetic number, because the mean of its divisors is an integer number (47250).

2⁵⁵⁵⁸⁷² 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 555872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (567000).

555872 is an abundant number, since it is smaller than the sum of its proper divisors (578128).

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

555872 is a wasteful number, since it uses less digits than its factorization.

555872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638 (or 630 counting only the distinct ones).

The product of its digits is 14000, while the sum is 32.

The square root of 555872 is about 745.5682396669. The cubic root of 555872 is about 82.2226745640. Note that the first 3 decimals are identical.

555872 divided by its sum of digits (32) gives a palindrome (17371).

The spelling of 555872 in words is "five hundred fifty-five thousand, eight hundred seventy-two".