2001888325625 has 20 divisors (see below), whose sum is σ = 2501913047172. Its totient is φ = 1601284416000.

The previous prime is 2001888325609. The next prime is 2001888325639. The reversal of 2001888325625 is 5265238881002.

It can be written as a sum of positive squares in 10 ways, for example, as 1998513761344 + 3374564281 = 1413688^2 + 58091^2 .

It is not a de Polignac number, because 2001888325625 - 2⁴ = 2001888325609 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4272977 + ... + 4718273.

Almost surely, 2^{2001888325625} is an apocalyptic number.

2001888325625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2001888325625 is a deficient number, since it is larger than the sum of its proper divisors (500024721547).

2001888325625 is an frugal number, since it uses more digits than its factorization.

2001888325625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452510 (or 452495 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 50.

The spelling of 2001888325625 in words is "two trillion, one billion, eight hundred eighty-eight million, three hundred twenty-five thousand, six hundred twenty-five".