225894481 has 2 divisors, whose sum is σ = 225894482. Its totient is φ = 225894480.

The previous prime is 225894467. The next prime is 225894499. The reversal of 225894481 is 184498522.

225894481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206180881 + 19713600 = 14359^2 + 4440^2 .

It is a cyclic number.

It is not a de Polignac number, because 225894481 - 2⁷ = 225894353 is a prime.

It is a super-2 number, since 2×225894481² = 102056633092518722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (225894451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112947240 + 112947241.

It is an arithmetic number, because the mean of its divisors is an integer number (112947241).

Almost surely, 2^225894481 is an apocalyptic number.

It is an amenable number.

225894481 is a deficient number, since it is larger than the sum of its proper divisors (1).

225894481 is an equidigital number, since it uses as much as digits as its factorization.

225894481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 184320, while the sum is 43.

The square root of 225894481 is about 15029.7864588955. The cubic root of 225894481 is about 609.0251211278.

The spelling of 225894481 in words is "two hundred twenty-five million, eight hundred ninety-four thousand, four hundred eighty-one".