22525229 has 2 divisors, whose sum is σ = 22525230. Its totient is φ = 22525228.

The previous prime is 22525219. The next prime is 22525231. The reversal of 22525229 is 92252522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20912329 + 1612900 = 4573^2 + 1270^2 .

It is a cyclic number.

It is not a de Polignac number, because 22525229 - 2⁸ = 22524973 is a prime.

Together with 22525231, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22525219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11262614 + 11262615.

It is an arithmetic number, because the mean of its divisors is an integer number (11262615).

Almost surely, 2^22525229 is an apocalyptic number.

It is an amenable number.

22525229 is a deficient number, since it is larger than the sum of its proper divisors (1).

22525229 is an equidigital number, since it uses as much as digits as its factorization.

22525229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 29.

The square root of 22525229 is about 4746.0751152926. The cubic root of 22525229 is about 282.4162865747.

The spelling of 22525229 in words is "twenty-two million, five hundred twenty-five thousand, two hundred twenty-nine".