556885 has 12 divisors (see below), whose sum is σ = 777708. Its totient is φ = 381696.

The previous prime is 556883. The next prime is 556891. The reversal of 556885 is 588655.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 362404 + 194481 = 602^2 + 441^2 .

It is not a de Polignac number, because 556885 - 2¹ = 556883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 892 + ... + 1381.

It is an arithmetic number, because the mean of its divisors is an integer number (64809).

2⁵⁵⁶⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

556885 is a deficient number, since it is larger than the sum of its proper divisors (220823).

556885 is a wasteful number, since it uses less digits than its factorization.

556885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292 (or 2285 counting only the distinct ones).

The product of its digits is 48000, while the sum is 37.

The square root of 556885 is about 746.2472780520. The cubic root of 556885 is about 82.2725907465.

It can be divided in two parts, 556 and 885, that added together give a palindrome (1441).

The spelling of 556885 in words is "five hundred fifty-six thousand, eight hundred eighty-five".