225521267 has 2 divisors, whose sum is σ = 225521268. Its totient is φ = 225521266.

The previous prime is 225521251. The next prime is 225521299. The reversal of 225521267 is 762125522.

It is an a-pointer prime, because the next prime (225521299) can be obtained adding 225521267 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225521267 - 2⁴ = 225521251 is a prime.

It is a super-3 number, since 3×225521267³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (225521207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112760633 + 112760634.

It is an arithmetic number, because the mean of its divisors is an integer number (112760634).

Almost surely, 2^225521267 is an apocalyptic number.

225521267 is a deficient number, since it is larger than the sum of its proper divisors (1).

225521267 is an equidigital number, since it uses as much as digits as its factorization.

225521267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16800, while the sum is 32.

The square root of 225521267 is about 15017.3655146301. The cubic root of 225521267 is about 608.6895337738.

Adding to 225521267 its reverse (762125522), we get a palindrome (987646789).

The spelling of 225521267 in words is "two hundred twenty-five million, five hundred twenty-one thousand, two hundred sixty-seven".