25216039 has 2 divisors, whose sum is σ = 25216040. Its totient is φ = 25216038.

The previous prime is 25216031. The next prime is 25216043. The reversal of 25216039 is 93061252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25216039 - 2³ = 25216031 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 25215998 and 25216016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25216031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12608019 + 12608020.

It is an arithmetic number, because the mean of its divisors is an integer number (12608020).

Almost surely, 2^25216039 is an apocalyptic number.

25216039 is a deficient number, since it is larger than the sum of its proper divisors (1).

25216039 is an equidigital number, since it uses as much as digits as its factorization.

25216039 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 28.

The square root of 25216039 is about 5021.5574277310. The cubic root of 25216039 is about 293.2416283867.

The spelling of 25216039 in words is "twenty-five million, two hundred sixteen thousand, thirty-nine".