2001324525 has 24 divisors (see below), whose sum is σ = 3314383104. Its totient is φ = 1065590400.

The previous prime is 2001324517. The next prime is 2001324527. The reversal of 2001324525 is 5254231002.

It is not a de Polignac number, because 2001324525 - 2³ = 2001324517 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2001324495 and 2001324504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001324527) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 23545 + ... + 67505.

It is an arithmetic number, because the mean of its divisors is an integer number (138099296).

Almost surely, 2^2001324525 is an apocalyptic number.

2001324525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2001324525 is a deficient number, since it is larger than the sum of its proper divisors (1313058579).

2001324525 is a wasteful number, since it uses less digits than its factorization.

2001324525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44581 (or 44576 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2001324525 is about 44736.1657386951. The cubic root of 2001324525 is about 1260.1991213399.

Adding to 2001324525 its reverse (5254231002), we get a palindrome (7255555527).

The spelling of 2001324525 in words is "two billion, one million, three hundred twenty-four thousand, five hundred twenty-five".