20522628552 has 32 divisors (see below), whose sum is σ = 51317585280. Its totient is φ = 6839407680.

The previous prime is 20522628541. The next prime is 20522628589. The reversal of 20522628552 is 25582622502.

It is a self number, because there is not a number n which added to its sum of digits gives 20522628552.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 25402 + ... + 204182.

It is an arithmetic number, because the mean of its divisors is an integer number (1603674540).

Almost surely, 2^20522628552 is an apocalyptic number.

It is an amenable number.

20522628552 is an abundant number, since it is smaller than the sum of its proper divisors (30794956728).

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

20522628552 is a wasteful number, since it uses less digits than its factorization.

20522628552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183573 (or 183569 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 39.

The spelling of 20522628552 in words is "twenty billion, five hundred twenty-two million, six hundred twenty-eight thousand, five hundred fifty-two".