545221202017 has 2 divisors, whose sum is σ = 545221202018. Its totient is φ = 545221202016.

The previous prime is 545221201937. The next prime is 545221202051. The reversal of 545221202017 is 710202122545.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 526779833616 + 18441368401 = 725796^2 + 135799^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545221202017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 545221202017.

It is not a weakly prime, because it can be changed into another prime (545221202717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272610601008 + 272610601009.

It is an arithmetic number, because the mean of its divisors is an integer number (272610601009).

Almost surely, 2^545221202017 is an apocalyptic number.

It is an amenable number.

545221202017 is a deficient number, since it is larger than the sum of its proper divisors (1).

545221202017 is an equidigital number, since it uses as much as digits as its factorization.

545221202017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11200, while the sum is 31.

The spelling of 545221202017 in words is "five hundred forty-five billion, two hundred twenty-one million, two hundred two thousand, seventeen".