25304039 has 2 divisors, whose sum is σ = 25304040. Its totient is φ = 25304038.

The previous prime is 25304021. The next prime is 25304051. The reversal of 25304039 is 93040352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25304039 - 2⁸ = 25303783 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 25303999 and 25304017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25304089) 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 as a sum of consecutive naturals, namely, 12652019 + 12652020.

It is an arithmetic number, because the mean of its divisors is an integer number (12652020).

Almost surely, 2^25304039 is an apocalyptic number.

25304039 is a deficient number, since it is larger than the sum of its proper divisors (1).

25304039 is an equidigital number, since it uses as much as digits as its factorization.

25304039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 25304039 is about 5030.3120181555. The cubic root of 25304039 is about 293.5823546813.

The spelling of 25304039 in words is "twenty-five million, three hundred four thousand, thirty-nine".