555688 has 16 divisors (see below), whose sum is σ = 1190880. Its totient is φ = 238128.

The previous prime is 555683. The next prime is 555691. The reversal of 555688 is 886555.

It is a happy number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (555683) by changing a digit.

555688 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 3 ways as a sum of consecutive naturals, for example, 4906 + ... + 5017.

It is an arithmetic number, because the mean of its divisors is an integer number (74430).

2⁵⁵⁵⁶⁸⁸ is an apocalyptic number.

It is an amenable number.

555688 is an abundant number, since it is smaller than the sum of its proper divisors (635192).

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

555688 is a wasteful number, since it uses less digits than its factorization.

555688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9936 (or 9932 counting only the distinct ones).

The product of its digits is 48000, while the sum is 37.

The square root of 555688 is about 745.4448336396. Note that the first 3 decimals coincide. The cubic root of 555688 is about 82.2136013470.

The spelling of 555688 in words is "five hundred fifty-five thousand, six hundred eighty-eight".