22022453 has 4 divisors (see below), whose sum is σ = 22559628. Its totient is φ = 21485280.

The previous prime is 22022449. The next prime is 22022459. The reversal of 22022453 is 35422022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35422022 = 2 ⋅17711011.

It can be written as a sum of positive squares in 2 ways, for example, as 9012004 + 13010449 = 3002^2 + 3607^2 .

It is a cyclic number.

It is not a de Polignac number, because 22022453 - 2² = 22022449 is a prime.

It is a super-2 number, since 2×22022453² = 969976872274418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022459) 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, 268526 + ... + 268607.

It is an arithmetic number, because the mean of its divisors is an integer number (5639907).

Almost surely, 2^22022453 is an apocalyptic number.

It is an amenable number.

22022453 is a deficient number, since it is larger than the sum of its proper divisors (537175).

22022453 is an equidigital number, since it uses as much as digits as its factorization.

22022453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537174.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 22022453 is about 4692.8086472815. The cubic root of 22022453 is about 280.2992251837.

Adding to 22022453 its reverse (35422022), we get a palindrome (57444475).

The spelling of 22022453 in words is "twenty-two million, twenty-two thousand, four hundred fifty-three".