22056423 has 4 divisors (see below), whose sum is σ = 29408568. Its totient is φ = 14704280.

The previous prime is 22056413. The next prime is 22056449. The reversal of 22056423 is 32465022.

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

It is a cyclic number.

It is not a de Polignac number, because 22056423 - 2¹³ = 22048231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22056393 and 22056402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22056413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3676068 + ... + 3676073.

It is an arithmetic number, because the mean of its divisors is an integer number (7352142).

Almost surely, 2^22056423 is an apocalyptic number.

22056423 is a deficient number, since it is larger than the sum of its proper divisors (7352145).

22056423 is an equidigital number, since it uses as much as digits as its factorization.

22056423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7352144.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 22056423 is about 4696.4266203146. The cubic root of 22056423 is about 280.4432732157.

The spelling of 22056423 in words is "twenty-two million, fifty-six thousand, four hundred twenty-three".