225841317857 has 2 divisors, whose sum is σ = 225841317858. Its totient is φ = 225841317856.

The previous prime is 225841317827. The next prime is 225841317899. The reversal of 225841317857 is 758713148522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178684589521 + 47156728336 = 422711^2 + 217156^2 .

It is a cyclic number.

It is not a de Polignac number, because 225841317857 - 2⁸ = 225841317601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225841317799 and 225841317808.

It is not a weakly prime, because it can be changed into another prime (225841317827) 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, 112920658928 + 112920658929.

It is an arithmetic number, because the mean of its divisors is an integer number (112920658929).

Almost surely, 2^225841317857 is an apocalyptic number.

It is an amenable number.

225841317857 is a deficient number, since it is larger than the sum of its proper divisors (1).

225841317857 is an equidigital number, since it uses as much as digits as its factorization.

225841317857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3763200, while the sum is 53.

The spelling of 225841317857 in words is "two hundred twenty-five billion, eight hundred forty-one million, three hundred seventeen thousand, eight hundred fifty-seven".