544531253443 has 4 divisors (see below), whose sum is σ = 547267591600. Its totient is φ = 541794915288.

The previous prime is 544531253389. The next prime is 544531253459. The reversal of 544531253443 is 344352135445.

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 544531253443 - 2⁹ = 544531252931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 544531253443.

It is not an unprimeable number, because it can be changed into a prime (544531253473) 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, 1368168780 + ... + 1368169177.

It is an arithmetic number, because the mean of its divisors is an integer number (136816897900).

Almost surely, 2^544531253443 is an apocalyptic number.

544531253443 is a deficient number, since it is larger than the sum of its proper divisors (2736338157).

544531253443 is a wasteful number, since it uses less digits than its factorization.

544531253443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2736338156.

The product of its digits is 1728000, while the sum is 43.

Adding to 544531253443 its reverse (344352135445), we get a palindrome (888883388888).

The spelling of 544531253443 in words is "five hundred forty-four billion, five hundred thirty-one million, two hundred fifty-three thousand, four hundred forty-three".