225471427 has 2 divisors, whose sum is σ = 225471428. Its totient is φ = 225471426.

The previous prime is 225471397. The next prime is 225471437. The reversal of 225471427 is 724174522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225471427 - 2⁷ = 225471299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225471392 and 225471401.

It is not a weakly prime, because it can be changed into another prime (225471437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112735713 + 112735714.

It is an arithmetic number, because the mean of its divisors is an integer number (112735714).

Almost surely, 2^225471427 is an apocalyptic number.

225471427 is a deficient number, since it is larger than the sum of its proper divisors (1).

225471427 is an equidigital number, since it uses as much as digits as its factorization.

225471427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31360, while the sum is 34.

The square root of 225471427 is about 15015.7060107076. The cubic root of 225471427 is about 608.6446905212.

The spelling of 225471427 in words is "two hundred twenty-five million, four hundred seventy-one thousand, four hundred twenty-seven".