225986307 has 4 divisors (see below), whose sum is σ = 301315080. Its totient is φ = 150657536.

The previous prime is 225986303. The next prime is 225986309. The reversal of 225986307 is 703689522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 225986307 - 2² = 225986303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225986303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37664382 + ... + 37664387.

It is an arithmetic number, because the mean of its divisors is an integer number (75328770).

Almost surely, 2^225986307 is an apocalyptic number.

225986307 is a deficient number, since it is larger than the sum of its proper divisors (75328773).

225986307 is an equidigital number, since it uses as much as digits as its factorization.

225986307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75328772.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 225986307 is about 15032.8409490688. The cubic root of 225986307 is about 609.1076327567.

The spelling of 225986307 in words is "two hundred twenty-five million, nine hundred eighty-six thousand, three hundred seven".