555960 has 64 divisors (see below), whose sum is σ = 1723680. Its totient is φ = 143360.

The previous prime is 555953. The next prime is 555967. The reversal of 555960 is 69555.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (555953) and next prime (555967).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555967) by changing a digit.

555960 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 15 ways as a sum of consecutive naturals, for example, 4864 + ... + 4976.

2⁵⁵⁵⁹⁶⁰ 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 555960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (861840).

555960 is an abundant number, since it is smaller than the sum of its proper divisors (1167720).

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

555960 is a wasteful number, since it uses less digits than its factorization.

555960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 30.

The square root of 555960 is about 745.6272527208. The cubic root of 555960 is about 82.2270132208.

The spelling of 555960 in words is "five hundred fifty-five thousand, nine hundred sixty".