56422 has 4 divisors (see below), whose sum is σ = 84636. Its totient is φ = 28210.

The previous prime is 56417. The next prime is 56431. The reversal of 56422 is 22465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22465 = 5 ⋅4493.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 56422.

It is a congruent number.

It is an unprimeable number.

56422 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 as a sum of consecutive naturals, namely, 14104 + ... + 14107.

It is an arithmetic number, because the mean of its divisors is an integer number (21159).

2⁵⁶⁴²² is an apocalyptic number.

56422 is a deficient number, since it is larger than the sum of its proper divisors (28214).

56422 is a wasteful number, since it uses less digits than its factorization.

56422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28213.

The product of its digits is 480, while the sum is 19.

The square root of 56422 is about 237.5331555804. The cubic root of 56422 is about 38.3544852808.

Adding to 56422 its reverse (22465), we get a palindrome (78887).

It can be divided in two parts, 56 and 422, that multiplied together give a palindrome (23632).

The spelling of 56422 in words is "fifty-six thousand, four hundred twenty-two".