22523243 has 2 divisors, whose sum is σ = 22523244. Its totient is φ = 22523242.

The previous prime is 22523239. The next prime is 22523257. The reversal of 22523243 is 34232522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22523243 - 2² = 22523239 is a prime.

It is not a weakly prime, because it can be changed into another prime (22523843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11261621 + 11261622.

It is an arithmetic number, because the mean of its divisors is an integer number (11261622).

Almost surely, 2^22523243 is an apocalyptic number.

22523243 is a deficient number, since it is larger than the sum of its proper divisors (1).

22523243 is an equidigital number, since it uses as much as digits as its factorization.

22523243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 23.

The square root of 22523243 is about 4745.8658851678. The cubic root of 22523243 is about 282.4079863227.

Adding to 22523243 its reverse (34232522), we get a palindrome (56755765).

The spelling of 22523243 in words is "twenty-two million, five hundred twenty-three thousand, two hundred forty-three".