556238 has 4 divisors (see below), whose sum is σ = 834360. Its totient is φ = 278118.

The previous prime is 556229. The next prime is 556243. The reversal of 556238 is 832655.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 556238.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 139058 + ... + 139061.

It is an arithmetic number, because the mean of its divisors is an integer number (208590).

2⁵⁵⁶²³⁸ is an apocalyptic number.

556238 is a deficient number, since it is larger than the sum of its proper divisors (278122).

556238 is a wasteful number, since it uses less digits than its factorization.

556238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278121.

The product of its digits is 7200, while the sum is 29.

The square root of 556238 is about 745.8136496471. The cubic root of 556238 is about 82.2407164252.

The spelling of 556238 in words is "five hundred fifty-six thousand, two hundred thirty-eight".