20003552005 has 8 divisors (see below), whose sum is σ = 24007899672. Its totient is φ = 16000416768.

The previous prime is 20003552003. The next prime is 20003552047. The reversal of 20003552005 is 50025530002.

It can be written as a sum of positive squares in 4 ways, for example, as 2507405476 + 17496146529 = 50074^2 + 132273^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20003552005 - 2¹ = 20003552003 is a prime.

It is a Duffinian number.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266404 + ... + 333133.

It is an arithmetic number, because the mean of its divisors is an integer number (3000987459).

Almost surely, 2^20003552005 is an apocalyptic number.

It is an amenable number.

20003552005 is a deficient number, since it is larger than the sum of its proper divisors (4004347667).

20003552005 is an equidigital number, since it uses as much as digits as its factorization.

20003552005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606215.

The product of its (nonzero) digits is 1500, while the sum is 22.

The spelling of 20003552005 in words is "twenty billion, three million, five hundred fifty-two thousand, five".