545220563 has 2 divisors, whose sum is σ = 545220564. Its totient is φ = 545220562.

The previous prime is 545220491. The next prime is 545220581. The reversal of 545220563 is 365022545.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 545220563 - 2¹⁶ = 545155027 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (545220763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272610281 + 272610282.

It is an arithmetic number, because the mean of its divisors is an integer number (272610282).

Almost surely, 2^545220563 is an apocalyptic number.

545220563 is a deficient number, since it is larger than the sum of its proper divisors (1).

545220563 is an equidigital number, since it uses as much as digits as its factorization.

545220563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 545220563 is about 23349.9585224471. The cubic root of 545220563 is about 816.9410934089.

The spelling of 545220563 in words is "five hundred forty-five million, two hundred twenty thousand, five hundred sixty-three".