225596491 has 2 divisors, whose sum is σ = 225596492. Its totient is φ = 225596490.

The previous prime is 225596479. The next prime is 225596513. The reversal of 225596491 is 194695522.

225596491 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 is a cyclic number.

It is not a de Polignac number, because 225596491 - 2¹⁹ = 225072203 is a prime.

It is not a weakly prime, because it can be changed into another prime (225596411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112798245 + 112798246.

It is an arithmetic number, because the mean of its divisors is an integer number (112798246).

Almost surely, 2^225596491 is an apocalyptic number.

225596491 is a deficient number, since it is larger than the sum of its proper divisors (1).

225596491 is an equidigital number, since it uses as much as digits as its factorization.

225596491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 43.

The square root of 225596491 is about 15019.8698729383. The cubic root of 225596491 is about 608.7572036246.

The spelling of 225596491 in words is "two hundred twenty-five million, five hundred ninety-six thousand, four hundred ninety-one".