555776 has 36 divisors (see below), whose sum is σ = 1201872. Its totient is φ = 254976.

The previous prime is 555767. The next prime is 555823. The reversal of 555776 is 677555.

It is an unprimeable number.

555776 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 (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3245 + ... + 3411.

2⁵⁵⁵⁷⁷⁶ 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 555776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (600936).

555776 is an abundant number, since it is smaller than the sum of its proper divisors (646096).

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

555776 is a wasteful number, since it uses less digits than its factorization.

555776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196 (or 182 counting only the distinct ones).

The product of its digits is 36750, while the sum is 35.

The square root of 555776 is about 745.5038564622. The cubic root of 555776 is about 82.2179409615.

It can be divided in two parts, 555 and 776, that added together give a palindrome (1331).

The spelling of 555776 in words is "five hundred fifty-five thousand, seven hundred seventy-six".