20552089600 has 225 divisors, whose sum is σ = 59290679577. Its totient is φ = 7046430720.

The previous prime is 20552089589. The next prime is 20552089603. The reversal of 20552089600 is 698025502.

It is a happy number.

The square root of 20552089600 is 143360.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7398752256 + 13153337344 = 86016^2 + 114688^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20552089600.

It is not an unprimeable number, because it can be changed into a prime (20552089603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2936012797 + ... + 2936012803.

Almost surely, 2^20552089600 is an apocalyptic number.

20552089600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

20552089600 is the 143360-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20552089600

20552089600 is an abundant number, since it is smaller than the sum of its proper divisors (38738589977).

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

20552089600 is an frugal number, since it uses more digits than its factorization.

20552089600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72 (or 14 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 20552089600 in words is "twenty billion, five hundred fifty-two million, eighty-nine thousand, six hundred".