555728 has 20 divisors (see below), whose sum is σ = 1101120. Its totient is φ = 271584.

The previous prime is 555707. The next prime is 555739. The reversal of 555728 is 827555.

It is a happy number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 555694 and 555703.

It is a congruent number.

It is an unprimeable number.

555728 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, 383 + ... + 1121.

It is an arithmetic number, because the mean of its divisors is an integer number (55056).

2⁵⁵⁵⁷²⁸ is an apocalyptic number.

It is an amenable number.

555728 is a deficient number, since it is larger than the sum of its proper divisors (545392).

555728 is a wasteful number, since it uses less digits than its factorization.

555728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794 (or 788 counting only the distinct ones).

The product of its digits is 14000, while the sum is 32.

The square root of 555728 is about 745.4716627746. The cubic root of 555728 is about 82.2155739559.

The spelling of 555728 in words is "five hundred fifty-five thousand, seven hundred twenty-eight".