4245565417 has 2 divisors, whose sum is σ = 4245565418. Its totient is φ = 4245565416.

The previous prime is 4245565391. The next prime is 4245565459. The reversal of 4245565417 is 7145655424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3757199616 + 488365801 = 61296^2 + 22099^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4245565417 is a prime.

It is not a weakly prime, because it can be changed into another prime (4245565517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2122782708 + 2122782709.

It is an arithmetic number, because the mean of its divisors is an integer number (2122782709).

Almost surely, 2^4245565417 is an apocalyptic number.

It is an amenable number.

4245565417 is a deficient number, since it is larger than the sum of its proper divisors (1).

4245565417 is an equidigital number, since it uses as much as digits as its factorization.

4245565417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 672000, while the sum is 43.

The square root of 4245565417 is about 65158.0034761655. The cubic root of 4245565417 is about 1619.2423191847.

The spelling of 4245565417 in words is "four billion, two hundred forty-five million, five hundred sixty-five thousand, four hundred seventeen".