556422 has 8 divisors (see below), whose sum is σ = 1112856. Its totient is φ = 185472.

The previous prime is 556403. The next prime is 556441. The reversal of 556422 is 224655.

556422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (556403) and next prime (556441).

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

556422 is an admirable number.

It is a d-powerful number, because it can be written as 5² + 5⁶ + 4³ + 6² + 2¹⁴ + 2¹⁹ .

It is a junction number, because it is equal to n+sod(n) for n = 556392 and 556401.

It is a congruent number.

It is an unprimeable number.

556422 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46363 + ... + 46374.

It is an arithmetic number, because the mean of its divisors is an integer number (139107).

2⁵⁵⁶⁴²² is an apocalyptic number.

556422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

556422 is a wasteful number, since it uses less digits than its factorization.

556422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92742.

The product of its digits is 2400, while the sum is 24.

The square root of 556422 is about 745.9369946584. The cubic root of 556422 is about 82.2497836612.

The spelling of 556422 in words is "five hundred fifty-six thousand, four hundred twenty-two".