20530530552 has 64 divisors (see below), whose sum is σ = 58678963200. Its totient is φ = 5863835520.

The previous prime is 20530530547. The next prime is 20530530563. The reversal of 20530530552 is 25503503502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 504402 + ... + 543582.

It is an arithmetic number, because the mean of its divisors is an integer number (916858800).

Almost surely, 2^20530530552 is an apocalyptic number.

It is an amenable number.

20530530552 is an abundant number, since it is smaller than the sum of its proper divisors (38148432648).

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

20530530552 is a wasteful number, since it uses less digits than its factorization.

20530530552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42316 (or 42312 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 30.

The spelling of 20530530552 in words is "twenty billion, five hundred thirty million, five hundred thirty thousand, five hundred fifty-two".