20003455050 has 24 divisors (see below), whose sum is σ = 49608568896. Its totient is φ = 5334254640.

The previous prime is 20003455039. The next prime is 20003455081. The reversal of 20003455050 is 5055430002.

It is a self number, because there is not a number n which added to its sum of digits gives 20003455050.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66678034 + ... + 66678333.

It is an arithmetic number, because the mean of its divisors is an integer number (2067023704).

Almost surely, 2^20003455050 is an apocalyptic number.

20003455050 is an abundant number, since it is smaller than the sum of its proper divisors (29605113846).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20003455050 is a wasteful number, since it uses less digits than its factorization.

20003455050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133356382 (or 133356377 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

Adding to 20003455050 its reverse (5055430002), we get a palindrome (25058885052).

The spelling of 20003455050 in words is "twenty billion, three million, four hundred fifty-five thousand, fifty".