225492857 has 2 divisors, whose sum is σ = 225492858. Its totient is φ = 225492856.

The previous prime is 225492833. The next prime is 225492937. The reversal of 225492857 is 758294522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205520896 + 19971961 = 14336^2 + 4469^2 .

It is a cyclic number.

It is not a de Polignac number, because 225492857 - 2⁸ = 225492601 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (225492457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112746428 + 112746429.

It is an arithmetic number, because the mean of its divisors is an integer number (112746429).

Almost surely, 2^225492857 is an apocalyptic number.

It is an amenable number.

225492857 is a deficient number, since it is larger than the sum of its proper divisors (1).

225492857 is an equidigital number, since it uses as much as digits as its factorization.

225492857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 403200, while the sum is 44.

The square root of 225492857 is about 15016.4195799132. The cubic root of 225492857 is about 608.6639728499.

The spelling of 225492857 in words is "two hundred twenty-five million, four hundred ninety-two thousand, eight hundred fifty-seven".