545524223441 has 4 divisors (see below), whose sum is σ = 545549598132. Its totient is φ = 545498848752.

The previous prime is 545524223429. The next prime is 545524223467. The reversal of 545524223441 is 144322425545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144322425545 = 5 ⋅28864485109.

It can be written as a sum of positive squares in 2 ways, for example, as 193494414400 + 352029809041 = 439880^2 + 593321^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545524223441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545524223141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12655070 + ... + 12698103.

It is an arithmetic number, because the mean of its divisors is an integer number (136387399533).

Almost surely, 2^545524223441 is an apocalyptic number.

It is an amenable number.

545524223441 is a deficient number, since it is larger than the sum of its proper divisors (25374691).

545524223441 is a wasteful number, since it uses less digits than its factorization.

545524223441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25374690.

The product of its digits is 768000, while the sum is 41.

Adding to 545524223441 its reverse (144322425545), we get a palindrome (689846648986).

The spelling of 545524223441 in words is "five hundred forty-five billion, five hundred twenty-four million, two hundred twenty-three thousand, four hundred forty-one".