225607717 has 2 divisors, whose sum is σ = 225607718. Its totient is φ = 225607716.

The previous prime is 225607699. The next prime is 225607751. The reversal of 225607717 is 717706522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 171452836 + 54154881 = 13094^2 + 7359^2 .

It is a cyclic number.

It is not a de Polignac number, because 225607717 - 2⁷ = 225607589 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225607517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112803858 + 112803859.

It is an arithmetic number, because the mean of its divisors is an integer number (112803859).

Almost surely, 2^225607717 is an apocalyptic number.

It is an amenable number.

225607717 is a deficient number, since it is larger than the sum of its proper divisors (1).

225607717 is an equidigital number, since it uses as much as digits as its factorization.

225607717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41160, while the sum is 37.

The square root of 225607717 is about 15020.2435732581. The cubic root of 225607717 is about 608.7673009965.

The spelling of 225607717 in words is "two hundred twenty-five million, six hundred seven thousand, seven hundred seventeen".