225716069 has 2 divisors, whose sum is σ = 225716070. Its totient is φ = 225716068.

The previous prime is 225716047. The next prime is 225716107. The reversal of 225716069 is 960617522.

It is a happy number.

It is an a-pointer prime, because the next prime (225716107) can be obtained adding 225716069 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205348900 + 20367169 = 14330^2 + 4513^2 .

It is a cyclic number.

It is not a de Polignac number, because 225716069 - 2¹⁶ = 225650533 is a prime.

It is a super-2 number, since 2×225716069² = 101895487609625522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225716039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112858034 + 112858035.

It is an arithmetic number, because the mean of its divisors is an integer number (112858035).

Almost surely, 2^225716069 is an apocalyptic number.

It is an amenable number.

225716069 is a deficient number, since it is larger than the sum of its proper divisors (1).

225716069 is an equidigital number, since it uses as much as digits as its factorization.

225716069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 225716069 is about 15023.8500059073. The cubic root of 225716069 is about 608.8647424000.

The spelling of 225716069 in words is "two hundred twenty-five million, seven hundred sixteen thousand, sixty-nine".