22055423 has 4 divisors (see below), whose sum is σ = 23752008. Its totient is φ = 20358840.

The previous prime is 22055377. The next prime is 22055489. The reversal of 22055423 is 32455022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32455022 = 2 ⋅16227511.

It is a cyclic number.

It is not a de Polignac number, because 22055423 - 2⁶ = 22055359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22055023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 848273 + ... + 848298.

It is an arithmetic number, because the mean of its divisors is an integer number (5938002).

Almost surely, 2^22055423 is an apocalyptic number.

22055423 is a deficient number, since it is larger than the sum of its proper divisors (1696585).

22055423 is a wasteful number, since it uses less digits than its factorization.

22055423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696584.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 22055423 is about 4696.3201551853. The cubic root of 22055423 is about 280.4390348810.

The spelling of 22055423 in words is "twenty-two million, fifty-five thousand, four hundred twenty-three".