225680823 has 10 divisors (see below), whose sum is σ = 337128264. Its totient is φ = 150453828.

The previous prime is 225680821. The next prime is 225680827. The reversal of 225680823 is 328086522.

It is not a de Polignac number, because 225680823 - 2¹ = 225680821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225680821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1393011 + ... + 1393172.

Almost surely, 2^225680823 is an apocalyptic number.

225680823 is a deficient number, since it is larger than the sum of its proper divisors (111447441).

225680823 is an equidigital number, since it uses as much as digits as its factorization.

225680823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2786195 (or 2786186 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 225680823 is about 15022.6769585184. The cubic root of 225680823 is about 608.8330489486.

The spelling of 225680823 in words is "two hundred twenty-five million, six hundred eighty thousand, eight hundred twenty-three".