20054030543 has 4 divisors (see below), whose sum is σ = 20054506200. Its totient is φ = 20053554888.

The previous prime is 20054030537. The next prime is 20054030587. The reversal of 20054030543 is 34503045002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34503045002 = 2 ⋅17251522501.

It is a cyclic number.

It is not a de Polignac number, because 20054030543 - 2⁴ = 20054030527 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 (20054030743) 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, 167693 + ... + 261206.

It is an arithmetic number, because the mean of its divisors is an integer number (5013626550).

Almost surely, 2^20054030543 is an apocalyptic number.

20054030543 is a deficient number, since it is larger than the sum of its proper divisors (475657).

20054030543 is an equidigital number, since it uses as much as digits as its factorization.

20054030543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475656.

The product of its (nonzero) digits is 7200, while the sum is 26.

Adding to 20054030543 its reverse (34503045002), we get a palindrome (54557075545).

The spelling of 20054030543 in words is "twenty billion, fifty-four million, thirty thousand, five hundred forty-three".