545545404545593 has 2 divisors, whose sum is σ = 545545404545594. Its totient is φ = 545545404545592.

The previous prime is 545545404545503. The next prime is 545545404545611. The reversal of 545545404545593 is 395545404545545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 424263927038224 + 121281477507369 = 20597668^2 + 11012787^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545545404545593 is a prime.

It is not a weakly prime, because it can be changed into another prime (545545404545503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272772702272796 + 272772702272797.

It is an arithmetic number, because the mean of its divisors is an integer number (272772702272797).

Almost surely, 2^{545545404545593} is an apocalyptic number.

It is an amenable number.

545545404545593 is a deficient number, since it is larger than the sum of its proper divisors (1).

545545404545593 is an equidigital number, since it uses as much as digits as its factorization.

545545404545593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160000000, while the sum is 67.

The spelling of 545545404545593 in words is "five hundred forty-five trillion, five hundred forty-five billion, four hundred four million, five hundred forty-five thousand, five hundred ninety-three".