22556453 has 4 divisors (see below), whose sum is σ = 22567308. Its totient is φ = 22545600.

The previous prime is 22556449. The next prime is 22556459. The reversal of 22556453 is 35465522.

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 can be written as a sum of positive squares in 2 ways, for example, as 14615329 + 7941124 = 3823^2 + 2818^2 .

It is a cyclic number.

It is not a de Polignac number, because 22556453 - 2² = 22556449 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 (22556459) 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, 1226 + ... + 6827.

It is an arithmetic number, because the mean of its divisors is an integer number (5641827).

Almost surely, 2^22556453 is an apocalyptic number.

It is an amenable number.

22556453 is a deficient number, since it is larger than the sum of its proper divisors (10855).

22556453 is an equidigital number, since it uses as much as digits as its factorization.

22556453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10854.

The product of its digits is 36000, while the sum is 32.

The square root of 22556453 is about 4749.3634310295. The cubic root of 22556453 is about 282.5467195032.

The spelling of 22556453 in words is "twenty-two million, five hundred fifty-six thousand, four hundred fifty-three".