545545404545503 has 2 divisors, whose sum is σ = 545545404545504. Its totient is φ = 545545404545502.

The previous prime is 545545404545431. The next prime is 545545404545593. The reversal of 545545404545503 is 305545404545545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545545404545503 - 2²¹ = 545545402448351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545545404545593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272772702272751 + 272772702272752.

It is an arithmetic number, because the mean of its divisors is an integer number (272772702272752).

Almost surely, 2^{545545404545503} is an apocalyptic number.

545545404545503 is a deficient number, since it is larger than the sum of its proper divisors (1).

545545404545503 is an equidigital number, since it uses as much as digits as its factorization.

545545404545503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240000000, while the sum is 58.

The spelling of 545545404545503 in words is "five hundred forty-five trillion, five hundred forty-five billion, four hundred four million, five hundred forty-five thousand, five hundred three".