545142275521 has 2 divisors, whose sum is σ = 545142275522. Its totient is φ = 545142275520.

The previous prime is 545142275459. The next prime is 545142275533. The reversal of 545142275521 is 125572241545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 538955666496 + 6186609025 = 734136^2 + 78655^2 .

It is a cyclic number.

It is not a de Polignac number, because 545142275521 - 2²¹ = 545140178369 is a prime.

It is not a weakly prime, because it can be changed into another prime (545142275551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272571137760 + 272571137761.

It is an arithmetic number, because the mean of its divisors is an integer number (272571137761).

Almost surely, 2^545142275521 is an apocalyptic number.

It is an amenable number.

545142275521 is a deficient number, since it is larger than the sum of its proper divisors (1).

545142275521 is an equidigital number, since it uses as much as digits as its factorization.

545142275521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 560000, while the sum is 43.

The spelling of 545142275521 in words is "five hundred forty-five billion, one hundred forty-two million, two hundred seventy-five thousand, five hundred twenty-one".