1004043025 has 6 divisors (see below), whose sum is σ = 1245013382. Its totient is φ = 803234400.

The previous prime is 1004043013. The next prime is 1004043043. The reversal of 1004043025 is 5203404001.

It can be written as a sum of positive squares in 3 ways, for example, as 4977361 + 999065664 = 2231^2 + 31608^2 .

It is not a de Polignac number, because 1004043025 - 2¹¹ = 1004040977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1004042993 and 1004043011.

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 5 ways as a sum of consecutive naturals, for example, 20080836 + ... + 20080885.

Almost surely, 2^1004043025 is an apocalyptic number.

It is an amenable number.

1004043025 is a deficient number, since it is larger than the sum of its proper divisors (240970357).

1004043025 is an equidigital number, since it uses as much as digits as its factorization.

1004043025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40161731 (or 40161726 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 1004043025 is about 31686.6379567161. The cubic root of 1004043025 is about 1001.3458628406.

Adding to 1004043025 its reverse (5203404001), we get a palindrome (6207447026).

The spelling of 1004043025 in words is "one billion, four million, forty-three thousand, twenty-five".