225305713 has 2 divisors, whose sum is σ = 225305714. Its totient is φ = 225305712.

The previous prime is 225305699. The next prime is 225305749. The reversal of 225305713 is 317503522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137077264 + 88228449 = 11708^2 + 9393^2 .

It is a cyclic number.

It is not a de Polignac number, because 225305713 - 2¹³ = 225297521 is a prime.

It is not a weakly prime, because it can be changed into another prime (225305753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112652856 + 112652857.

It is an arithmetic number, because the mean of its divisors is an integer number (112652857).

Almost surely, 2^225305713 is an apocalyptic number.

It is an amenable number.

225305713 is a deficient number, since it is larger than the sum of its proper divisors (1).

225305713 is an equidigital number, since it uses as much as digits as its factorization.

225305713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 225305713 is about 15010.1869741852. The cubic root of 225305713 is about 608.4955427740.

The spelling of 225305713 in words is "two hundred twenty-five million, three hundred five thousand, seven hundred thirteen".