556855 has 12 divisors (see below), whose sum is σ = 724680. Its totient is φ = 410592.

The previous prime is 556849. The next prime is 556859. The reversal of 556855 is 558655.

It is not a de Polignac number, because 556855 - 2⁵ = 556823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 556855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 516 + ... + 1174.

It is an arithmetic number, because the mean of its divisors is an integer number (60390).

2⁵⁵⁶⁸⁵⁵ is an apocalyptic number.

556855 is a deficient number, since it is larger than the sum of its proper divisors (167825).

556855 is a wasteful number, since it uses less digits than its factorization.

556855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690 (or 677 counting only the distinct ones).

The product of its digits is 30000, while the sum is 34.

The square root of 556855 is about 746.2271772054. The cubic root of 556855 is about 82.2711133487.

The spelling of 556855 in words is "five hundred fifty-six thousand, eight hundred fifty-five".