225607769 has 2 divisors, whose sum is σ = 225607770. Its totient is φ = 225607768.

The previous prime is 225607751. The next prime is 225607783. The reversal of 225607769 is 967706522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206353225 + 19254544 = 14365^2 + 4388^2 .

It is a cyclic number.

It is not a de Polignac number, because 225607769 - 2⁸ = 225607513 is a prime.

It is a super-2 number, since 2×225607769² = 101797730866314722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (225600769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112803884 + 112803885.

It is an arithmetic number, because the mean of its divisors is an integer number (112803885).

Almost surely, 2^225607769 is an apocalyptic number.

It is an amenable number.

225607769 is a deficient number, since it is larger than the sum of its proper divisors (1).

225607769 is an equidigital number, since it uses as much as digits as its factorization.

225607769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 225607769 is about 15020.2453042552. The cubic root of 225607769 is about 608.7673477678.

The spelling of 225607769 in words is "two hundred twenty-five million, six hundred seven thousand, seven hundred sixty-nine".