225682393 has 2 divisors, whose sum is σ = 225682394. Its totient is φ = 225682392.

The previous prime is 225682339. The next prime is 225682397. The reversal of 225682393 is 393286522.

It is a happy number.

Together with previous prime (225682339) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163635264 + 62047129 = 12792^2 + 7877^2 .

It is a cyclic number.

It is not a de Polignac number, because 225682393 - 2¹⁷ = 225551321 is a prime.

It is not a weakly prime, because it can be changed into another prime (225682397) 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, 112841196 + 112841197.

It is an arithmetic number, because the mean of its divisors is an integer number (112841197).

Almost surely, 2^225682393 is an apocalyptic number.

It is an amenable number.

225682393 is a deficient number, since it is larger than the sum of its proper divisors (1).

225682393 is an equidigital number, since it uses as much as digits as its factorization.

225682393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 40.

The square root of 225682393 is about 15022.7292127629. The cubic root of 225682393 is about 608.8344607739.

The spelling of 225682393 in words is "two hundred twenty-five million, six hundred eighty-two thousand, three hundred ninety-three".