225657611 has 2 divisors, whose sum is σ = 225657612. Its totient is φ = 225657610.

The previous prime is 225657583. The next prime is 225657617. The reversal of 225657611 is 116756522.

225657611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225657611 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (225657617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112828805 + 112828806.

It is an arithmetic number, because the mean of its divisors is an integer number (112828806).

Almost surely, 2^225657611 is an apocalyptic number.

225657611 is a deficient number, since it is larger than the sum of its proper divisors (1).

225657611 is an equidigital number, since it uses as much as digits as its factorization.

225657611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 35.

The square root of 225657611 is about 15021.9043732810. The cubic root of 225657611 is about 608.8121747525.

The spelling of 225657611 in words is "two hundred twenty-five million, six hundred fifty-seven thousand, six hundred eleven".