545220555023 has 2 divisors, whose sum is σ = 545220555024. Its totient is φ = 545220555022.

The previous prime is 545220554987. The next prime is 545220555109. The reversal of 545220555023 is 320555022545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545220555023 - 2⁶ = 545220554959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545220555323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272610277511 + 272610277512.

It is an arithmetic number, because the mean of its divisors is an integer number (272610277512).

Almost surely, 2^545220555023 is an apocalyptic number.

545220555023 is a deficient number, since it is larger than the sum of its proper divisors (1).

545220555023 is an equidigital number, since it uses as much as digits as its factorization.

545220555023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300000, while the sum is 38.

Adding to 545220555023 its reverse (320555022545), we get a palindrome (865775577568).

The spelling of 545220555023 in words is "five hundred forty-five billion, two hundred twenty million, five hundred fifty-five thousand, twenty-three".