20003025 has 36 divisors (see below), whose sum is σ = 38478192. Its totient is φ = 9142560.

The previous prime is 20003023. The next prime is 20003047. The reversal of 20003025 is 52030002.

It is not a de Polignac number, because 20003025 - 2¹ = 20003023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20003025.

It is not an unprimeable number, because it can be changed into a prime (20003023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 954 + ... + 6396.

Almost surely, 2^20003025 is an apocalyptic number.

20003025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20003025 is a deficient number, since it is larger than the sum of its proper divisors (18475167).

20003025 is a wasteful number, since it uses less digits than its factorization.

20003025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5470 (or 5458 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 12.

The square root of 20003025 is about 4472.4741474938. The cubic root of 20003025 is about 271.4554461584.

Adding to 20003025 its reverse (52030002), we get a palindrome (72033027).

The spelling of 20003025 in words is "twenty million, three thousand, twenty-five".