225084857 has 2 divisors, whose sum is σ = 225084858. Its totient is φ = 225084856.

The previous prime is 225084851. The next prime is 225084917. The reversal of 225084857 is 758480522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224670121 + 414736 = 14989^2 + 644^2 .

It is a cyclic number.

It is not a de Polignac number, because 225084857 - 2⁴ = 225084841 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (225084851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112542428 + 112542429.

It is an arithmetic number, because the mean of its divisors is an integer number (112542429).

Almost surely, 2^225084857 is an apocalyptic number.

It is an amenable number.

225084857 is a deficient number, since it is larger than the sum of its proper divisors (1).

225084857 is an equidigital number, since it uses as much as digits as its factorization.

225084857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 179200, while the sum is 41.

The square root of 225084857 is about 15002.8283000240. The cubic root of 225084857 is about 608.2966517862.

The spelling of 225084857 in words is "two hundred twenty-five million, eighty-four thousand, eight hundred fifty-seven".