20003552000 has 72 divisors (see below), whose sum is σ = 49831428192. Its totient is φ = 8001408000.

The previous prime is 20003551991. The next prime is 20003552003. The reversal of 20003552000 is 25530002.

It is a self number, because there is not a number n which added to its sum of digits gives 20003552000.

It is not an unprimeable number, because it can be changed into a prime (20003552003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280556 + ... + 344555.

Almost surely, 2^20003552000 is an apocalyptic number.

20003552000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20003552000 is an abundant number, since it is smaller than the sum of its proper divisors (29827876192).

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

20003552000 is an frugal number, since it uses more digits than its factorization.

20003552000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625142 (or 625118 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 17.

The spelling of 20003552000 in words is "twenty billion, three million, five hundred fifty-two thousand".