225016271 has 2 divisors, whose sum is σ = 225016272. Its totient is φ = 225016270.

The previous prime is 225016261. The next prime is 225016273. The reversal of 225016271 is 172610522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225016271 - 2²² = 220821967 is a prime.

Together with 225016273, 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 225016271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225016273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112508135 + 112508136.

It is an arithmetic number, because the mean of its divisors is an integer number (112508136).

Almost surely, 2^225016271 is an apocalyptic number.

225016271 is a deficient number, since it is larger than the sum of its proper divisors (1).

225016271 is an equidigital number, since it uses as much as digits as its factorization.

225016271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 225016271 is about 15000.5423568616. The cubic root of 225016271 is about 608.2348604645.

Adding to 225016271 its reverse (172610522), we get a palindrome (397626793).

The spelling of 225016271 in words is "two hundred twenty-five million, sixteen thousand, two hundred seventy-one".