225155417 has 2 divisors, whose sum is σ = 225155418. Its totient is φ = 225155416.

The previous prime is 225155401. The next prime is 225155419. The reversal of 225155417 is 714551522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131239936 + 93915481 = 11456^2 + 9691^2 .

It is a cyclic number.

It is not a de Polignac number, because 225155417 - 2⁴ = 225155401 is a prime.

Together with 225155419, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (225155419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112577708 + 112577709.

It is an arithmetic number, because the mean of its divisors is an integer number (112577709).

Almost surely, 2^225155417 is an apocalyptic number.

It is an amenable number.

225155417 is a deficient number, since it is larger than the sum of its proper divisors (1).

225155417 is an equidigital number, since it uses as much as digits as its factorization.

225155417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14000, while the sum is 32.

The square root of 225155417 is about 15005.1796723665. The cubic root of 225155417 is about 608.3602084497.

The spelling of 225155417 in words is "two hundred twenty-five million, one hundred fifty-five thousand, four hundred seventeen".