556239 has 8 divisors (see below), whose sum is σ = 751360. Its totient is φ = 365976.

The previous prime is 556229. The next prime is 556243. The reversal of 556239 is 932655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-556239 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 937 + ... + 1410.

It is an arithmetic number, because the mean of its divisors is an integer number (93920).

2⁵⁵⁶²³⁹ is an apocalyptic number.

556239 is a deficient number, since it is larger than the sum of its proper divisors (195121).

556239 is a wasteful number, since it uses less digits than its factorization.

556239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429.

The product of its digits is 8100, while the sum is 30.

The square root of 556239 is about 745.8143200556. The cubic root of 556239 is about 82.2407657091.

The spelling of 556239 in words is "five hundred fifty-six thousand, two hundred thirty-nine".