225086669 has 2 divisors, whose sum is σ = 225086670. Its totient is φ = 225086668.

The previous prime is 225086663. The next prime is 225086677. The reversal of 225086669 is 966680522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221712100 + 3374569 = 14890^2 + 1837^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225086669 is a prime.

It is a super-2 number, since 2×225086669² = 101328017123031122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225086663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112543334 + 112543335.

It is an arithmetic number, because the mean of its divisors is an integer number (112543335).

Almost surely, 2^225086669 is an apocalyptic number.

It is an amenable number.

225086669 is a deficient number, since it is larger than the sum of its proper divisors (1).

225086669 is an equidigital number, since it uses as much as digits as its factorization.

225086669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 225086669 is about 15002.8886885160. Note that the first 3 decimals coincide. The cubic root of 225086669 is about 608.2982841048.

The spelling of 225086669 in words is "two hundred twenty-five million, eighty-six thousand, six hundred sixty-nine".