556825 has 6 divisors (see below), whose sum is σ = 690494. Its totient is φ = 445440.

The previous prime is 556823. The next prime is 556841. The reversal of 556825 is 528655.

It can be written as a sum of positive squares in 3 ways, for example, as 7744 + 549081 = 88^2 + 741^2 .

It is not a de Polignac number, because 556825 - 2¹ = 556823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556823) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 11112 + ... + 11161.

2⁵⁵⁶⁸²⁵ is an apocalyptic number.

It is an amenable number.

556825 is a deficient number, since it is larger than the sum of its proper divisors (133669).

556825 is a wasteful number, since it uses less digits than its factorization.

556825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22283 (or 22278 counting only the distinct ones).

The product of its digits is 12000, while the sum is 31.

The square root of 556825 is about 746.2070758174. The cubic root of 556825 is about 82.2696358978.

The spelling of 556825 in words is "five hundred fifty-six thousand, eight hundred twenty-five".