556004 has 12 divisors (see below), whose sum is σ = 983724. Its totient is φ = 274944.

The previous prime is 555967. The next prime is 556007. The reversal of 556004 is 400655.

It can be written as a sum of positive squares in 2 ways, for example, as 362404 + 193600 = 602^2 + 440^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556007) 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 3 ways as a sum of consecutive naturals, for example, 329 + ... + 1104.

It is an arithmetic number, because the mean of its divisors is an integer number (81977).

2⁵⁵⁶⁰⁰⁴ is an apocalyptic number.

It is an amenable number.

556004 is a deficient number, since it is larger than the sum of its proper divisors (427720).

556004 is a wasteful number, since it uses less digits than its factorization.

556004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534 (or 1532 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 556004 is about 745.6567574964. The cubic root of 556004 is about 82.2291823776.

Adding to 556004 its reverse (400655), we get a palindrome (956659).

The spelling of 556004 in words is "five hundred fifty-six thousand, four".