22531253 has 2 divisors, whose sum is σ = 22531254. Its totient is φ = 22531252.

The previous prime is 22531241. The next prime is 22531259. The reversal of 22531253 is 35213522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19298449 + 3232804 = 4393^2 + 1798^2 .

It is a cyclic number.

It is not a de Polignac number, because 22531253 - 2⁸ = 22530997 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22531259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11265626 + 11265627.

It is an arithmetic number, because the mean of its divisors is an integer number (11265627).

Almost surely, 2^22531253 is an apocalyptic number.

It is an amenable number.

22531253 is a deficient number, since it is larger than the sum of its proper divisors (1).

22531253 is an equidigital number, since it uses as much as digits as its factorization.

22531253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 23.

The square root of 22531253 is about 4746.7097025203. The cubic root of 22531253 is about 282.4414601859.

Adding to 22531253 its reverse (35213522), we get a palindrome (57744775).

The spelling of 22531253 in words is "twenty-two million, five hundred thirty-one thousand, two hundred fifty-three".