20501260534530 has 48 divisors (see below), whose sum is σ = 53642788747704. Its totient is φ = 5432181131520.

The previous prime is 20501260534519. The next prime is 20501260534541. The reversal of 20501260534530 is 3543506210502.

20501260534530 is a `hidden beast` number, since 2 + 0 + 5 + 0 + 1 + 2 + 605 + 3 + 45 + 3 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (20501260534519) and next prime (20501260534541).

It can be written as a sum of positive squares in 4 ways, for example, as 13719178931481 + 6782081603049 = 3703941^2 + 2604243^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 725437411 + ... + 725465670.

Almost surely, 2^{20501260534530} is an apocalyptic number.

20501260534530 is an abundant number, since it is smaller than the sum of its proper divisors (33141528213174).

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

20501260534530 is a wasteful number, since it uses less digits than its factorization.

20501260534530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450903251 (or 1450903248 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 20501260534530 in words is "twenty trillion, five hundred one billion, two hundred sixty million, five hundred thirty-four thousand, five hundred thirty".