20053505104 has 20 divisors (see below), whose sum is σ = 40193448660. Its totient is φ = 9681002240.

The previous prime is 20053505089. The next prime is 20053505161. The reversal of 20053505104 is 40150535002.

It can be written as a sum of positive squares in 2 ways, for example, as 9555453504 + 10498051600 = 97752^2 + 102460^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21608917 + ... + 21609844.

It is an arithmetic number, because the mean of its divisors is an integer number (2009672433).

Almost surely, 2^20053505104 is an apocalyptic number.

It is an amenable number.

20053505104 is an abundant number, since it is smaller than the sum of its proper divisors (20139943556).

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

20053505104 is a wasteful number, since it uses less digits than its factorization.

20053505104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43218798 (or 43218792 counting only the distinct ones).

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

The spelling of 20053505104 in words is "twenty billion, fifty-three million, five hundred five thousand, one hundred four".