2001002025 has 24 divisors (see below), whose sum is σ = 3609081504. Its totient is φ = 970182400.

The previous prime is 2001002011. The next prime is 2001002057. The reversal of 2001002025 is 5202001002.

It is not a de Polignac number, because 2001002025 - 2²⁹ = 1464131113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2001002025.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1211904 + ... + 1213553.

It is an arithmetic number, because the mean of its divisors is an integer number (150378396).

Almost surely, 2^2001002025 is an apocalyptic number.

2001002025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2001002025 is a deficient number, since it is larger than the sum of its proper divisors (1608079479).

2001002025 is a wasteful number, since it uses less digits than its factorization.

2001002025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2425481 (or 2425476 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 2001002025 is about 44732.5611272147. The cubic root of 2001002025 is about 1260.1314268300.

Adding to 2001002025 its reverse (5202001002), we get a palindrome (7203003027).

The spelling of 2001002025 in words is "two billion, one million, two thousand, twenty-five".