556443 has 16 divisors (see below), whose sum is σ = 848160. Its totient is φ = 360288.

The previous prime is 556441. The next prime is 556459. The reversal of 556443 is 344655.

It is not a de Polignac number, because 556443 - 2¹ = 556441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (556441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 721 + ... + 1277.

It is an arithmetic number, because the mean of its divisors is an integer number (53010).

2⁵⁵⁶⁴⁴³ is an apocalyptic number.

556443 is a deficient number, since it is larger than the sum of its proper divisors (291717).

556443 is a wasteful number, since it uses less digits than its factorization.

556443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603 (or 597 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 556443 is about 745.9510707815. The cubic root of 556443 is about 82.2508183817.

It can be divided in two parts, 556 and 443, that added together give a palindrome (999).

The spelling of 556443 in words is "five hundred fifty-six thousand, four hundred forty-three".