28524455543 has 4 divisors (see below), whose sum is σ = 28527762960. Its totient is φ = 28521148128.

The previous prime is 28524455521. The next prime is 28524455569. The reversal of 28524455543 is 34555442582.

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 28524455543 - 2¹² = 28524451447 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 (28524455243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1640738 + ... + 1658031.

It is an arithmetic number, because the mean of its divisors is an integer number (7131940740).

Almost surely, 2^28524455543 is an apocalyptic number.

28524455543 is a deficient number, since it is larger than the sum of its proper divisors (3307417).

28524455543 is an equidigital number, since it uses as much as digits as its factorization.

28524455543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3307416.

The product of its digits is 3840000, while the sum is 47.

The spelling of 28524455543 in words is "twenty-eight billion, five hundred twenty-four million, four hundred fifty-five thousand, five hundred forty-three".