25522229 has 2 divisors, whose sum is σ = 25522230. Its totient is φ = 25522228.

The previous prime is 25522201. The next prime is 25522271. The reversal of 25522229 is 92222552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21808900 + 3713329 = 4670^2 + 1927^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25522229 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 (25522129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12761114 + 12761115.

It is an arithmetic number, because the mean of its divisors is an integer number (12761115).

Almost surely, 2^25522229 is an apocalyptic number.

It is an amenable number.

25522229 is a deficient number, since it is larger than the sum of its proper divisors (1).

25522229 is an equidigital number, since it uses as much as digits as its factorization.

25522229 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 25522229 is about 5051.9529886965. The cubic root of 25522229 is about 294.4237683938.

The spelling of 25522229 in words is "twenty-five million, five hundred twenty-two thousand, two hundred twenty-nine".