1004025 has 24 divisors (see below), whose sum is σ = 1812384. Its totient is φ = 486400.

The previous prime is 1003963. The next prime is 1004027. The reversal of 1004025 is 5204001.

It is not a de Polignac number, because 1004025 - 2⁷ = 1003897 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1004025.

It is not an unprimeable number, because it can be changed into a prime (1004027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217 + ... + 1433.

It is an arithmetic number, because the mean of its divisors is an integer number (75516).

2^1004025 is an apocalyptic number.

1004025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1004025 is a deficient number, since it is larger than the sum of its proper divisors (808359).

1004025 is a wasteful number, since it uses less digits than its factorization.

1004025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241 (or 1236 counting only the distinct ones).

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

The square root of 1004025 is about 1002.0104789871. The cubic root of 1004025 is about 100.1339870612.

Adding to 1004025 its reverse (5204001), we get a palindrome (6208026).

The spelling of 1004025 in words is "one million, four thousand, twenty-five".