45005250217 has 2 divisors, whose sum is σ = 45005250218. Its totient is φ = 45005250216.

The previous prime is 45005250193. The next prime is 45005250287. The reversal of 45005250217 is 71205250054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29335468176 + 15669782041 = 171276^2 + 125179^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45005250217 is a prime.

It is not a weakly prime, because it can be changed into another prime (45005250287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22502625108 + 22502625109.

It is an arithmetic number, because the mean of its divisors is an integer number (22502625109).

Almost surely, 2^45005250217 is an apocalyptic number.

It is an amenable number.

45005250217 is a deficient number, since it is larger than the sum of its proper divisors (1).

45005250217 is an equidigital number, since it uses as much as digits as its factorization.

45005250217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14000, while the sum is 31.

The spelling of 45005250217 in words is "forty-five billion, five million, two hundred fifty thousand, two hundred seventeen".