555988 has 12 divisors (see below), whose sum is σ = 1006740. Its totient is φ = 268352.

The previous prime is 555967. The next prime is 556007. The reversal of 555988 is 889555.

It can be written as a sum of positive squares in 2 ways, for example, as 394384 + 161604 = 628^2 + 402^2 .

It is a super-2 number, since 2×555988² = 618245312288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 555988.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2281 + ... + 2512.

It is an arithmetic number, because the mean of its divisors is an integer number (83895).

2⁵⁵⁵⁹⁸⁸ is an apocalyptic number.

555988 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

555988 is a deficient number, since it is larger than the sum of its proper divisors (450752).

555988 is a wasteful number, since it uses less digits than its factorization.

555988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4826 (or 4824 counting only the distinct ones).

The product of its digits is 72000, while the sum is 40.

The square root of 555988 is about 745.6460286222. The cubic root of 555988 is about 82.2283936065.

The spelling of 555988 in words is "five hundred fifty-five thousand, nine hundred eighty-eight".