225716307 has 4 divisors (see below), whose sum is σ = 300955080. Its totient is φ = 150477536.

The previous prime is 225716303. The next prime is 225716321. The reversal of 225716307 is 703617522.

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 225716307 - 2² = 225716303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225716303) 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, 37619382 + ... + 37619387.

It is an arithmetic number, because the mean of its divisors is an integer number (75238770).

Almost surely, 2^225716307 is an apocalyptic number.

225716307 is a deficient number, since it is larger than the sum of its proper divisors (75238773).

225716307 is an equidigital number, since it uses as much as digits as its factorization.

225716307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75238772.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 225716307 is about 15023.8579266445. The cubic root of 225716307 is about 608.8649564001.

The spelling of 225716307 in words is "two hundred twenty-five million, seven hundred sixteen thousand, three hundred seven".