22055723 has 4 divisors (see below), whose sum is σ = 22065288. Its totient is φ = 22046160.

The previous prime is 22055717. The next prime is 22055729. The reversal of 22055723 is 32755022.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (22055717) and next prime (22055729).

It is a cyclic number.

It is not a de Polignac number, because 22055723 - 2⁴ = 22055707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22055692 and 22055701.

It is not an unprimeable number, because it can be changed into a prime (22055729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1040 + ... + 6722.

It is an arithmetic number, because the mean of its divisors is an integer number (5516322).

Almost surely, 2^22055723 is an apocalyptic number.

22055723 is a deficient number, since it is larger than the sum of its proper divisors (9565).

22055723 is an equidigital number, since it uses as much as digits as its factorization.

22055723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9564.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 22055723 is about 4696.3520949775. The cubic root of 22055723 is about 280.4403063949.

The spelling of 22055723 in words is "twenty-two million, fifty-five thousand, seven hundred twenty-three".