225396823 has 2 divisors, whose sum is σ = 225396824. Its totient is φ = 225396822.

The previous prime is 225396799. The next prime is 225396869. The reversal of 225396823 is 328693522.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225396823 - 2¹⁷ = 225265751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225396883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112698411 + 112698412.

It is an arithmetic number, because the mean of its divisors is an integer number (112698412).

Almost surely, 2^225396823 is an apocalyptic number.

225396823 is a deficient number, since it is larger than the sum of its proper divisors (1).

225396823 is an equidigital number, since it uses as much as digits as its factorization.

225396823 is an evil number, because the sum of its binary digits is even.

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

The square root of 225396823 is about 15013.2216063042. The cubic root of 225396823 is about 608.5775536513.

The spelling of 225396823 in words is "two hundred twenty-five million, three hundred ninety-six thousand, eight hundred twenty-three".