556039 has 4 divisors (see below), whose sum is σ = 606600. Its totient is φ = 505480.

The previous prime is 556037. The next prime is 556043. The reversal of 556039 is 930655.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 556039 - 2¹ = 556037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 555998 and 556016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25264 + ... + 25285.

It is an arithmetic number, because the mean of its divisors is an integer number (151650).

2⁵⁵⁶⁰³⁹ is an apocalyptic number.

556039 is a deficient number, since it is larger than the sum of its proper divisors (50561).

556039 is a wasteful number, since it uses less digits than its factorization.

556039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50560.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 556039 is about 745.6802263705. The cubic root of 556039 is about 82.2309077614.

The spelling of 556039 in words is "five hundred fifty-six thousand, thirty-nine".