544505053220543 has 4 divisors (see below), whose sum is σ = 544757022243168. Its totient is φ = 544253084197920.

The previous prime is 544505053220539. The next prime is 544505053220591. The reversal of 544505053220543 is 345022350505445.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 544505053220543 - 2² = 544505053220539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544505053225543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125984508071 + ... + 125984512392.

It is an arithmetic number, because the mean of its divisors is an integer number (136189255560792).

Almost surely, 2^{544505053220543} is an apocalyptic number.

544505053220543 is a deficient number, since it is larger than the sum of its proper divisors (251969022625).

544505053220543 is a wasteful number, since it uses less digits than its factorization.

544505053220543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251969022624.

The product of its (nonzero) digits is 7200000, while the sum is 47.

The spelling of 544505053220543 in words is "five hundred forty-four trillion, five hundred five billion, fifty-three million, two hundred twenty thousand, five hundred forty-three".