225655351697 has 2 divisors, whose sum is σ = 225655351698. Its totient is φ = 225655351696.

The previous prime is 225655351687. The next prime is 225655351739. The reversal of 225655351697 is 796153556522.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161012797696 + 64642554001 = 401264^2 + 254249^2 .

It is a cyclic number.

It is not a de Polignac number, because 225655351697 - 2⁶ = 225655351633 is a prime.

It is not a weakly prime, because it can be changed into another prime (225655351687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112827675848 + 112827675849.

It is an arithmetic number, because the mean of its divisors is an integer number (112827675849).

Almost surely, 2^225655351697 is an apocalyptic number.

It is an amenable number.

225655351697 is a deficient number, since it is larger than the sum of its proper divisors (1).

225655351697 is an equidigital number, since it uses as much as digits as its factorization.

225655351697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17010000, while the sum is 56.

The spelling of 225655351697 in words is "two hundred twenty-five billion, six hundred fifty-five million, three hundred fifty-one thousand, six hundred ninety-seven".