20050143055 has 4 divisors (see below), whose sum is σ = 24060171672. Its totient is φ = 16040114440.

The previous prime is 20050143031. The next prime is 20050143059. The reversal of 20050143055 is 55034105002.

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

It is not a de Polignac number, because 20050143055 - 2⁵ = 20050143023 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 (20050143059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2005014301 + ... + 2005014310.

It is an arithmetic number, because the mean of its divisors is an integer number (6015042918).

Almost surely, 2^20050143055 is an apocalyptic number.

20050143055 is a deficient number, since it is larger than the sum of its proper divisors (4010028617).

20050143055 is an equidigital number, since it uses as much as digits as its factorization.

20050143055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4010028616.

The product of its (nonzero) digits is 3000, while the sum is 25.

Adding to 20050143055 its reverse (55034105002), we get a palindrome (75084248057).

The spelling of 20050143055 in words is "twenty billion, fifty million, one hundred forty-three thousand, fifty-five".