555678 has 12 divisors (see below), whose sum is σ = 1204008. Its totient is φ = 185220.

The previous prime is 555677. The next prime is 555683. The reversal of 555678 is 876555.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15418 + ... + 15453.

It is an arithmetic number, because the mean of its divisors is an integer number (100334).

2⁵⁵⁵⁶⁷⁸ is an apocalyptic number.

555678 is an abundant number, since it is smaller than the sum of its proper divisors (648330).

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

555678 is a wasteful number, since it uses less digits than its factorization.

555678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30879 (or 30876 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 555678 is about 745.4381262050. The cubic root of 555678 is about 82.2131081800.

The spelling of 555678 in words is "five hundred fifty-five thousand, six hundred seventy-eight".