225342251 has 2 divisors, whose sum is σ = 225342252. Its totient is φ = 225342250.

The previous prime is 225342217. The next prime is 225342253. The reversal of 225342251 is 152243522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225342251 - 2²² = 221147947 is a prime.

Together with 225342253, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225342251.

It is not a weakly prime, because it can be changed into another prime (225342253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112671125 + 112671126.

It is an arithmetic number, because the mean of its divisors is an integer number (112671126).

Almost surely, 2^225342251 is an apocalyptic number.

225342251 is a deficient number, since it is larger than the sum of its proper divisors (1).

225342251 is an equidigital number, since it uses as much as digits as its factorization.

225342251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4800, while the sum is 26.

The square root of 225342251 is about 15011.4040316021. The cubic root of 225342251 is about 608.5284343921.

Adding to 225342251 its reverse (152243522), we get a palindrome (377585773).

The spelling of 225342251 in words is "two hundred twenty-five million, three hundred forty-two thousand, two hundred fifty-one".