25208017 has 2 divisors, whose sum is σ = 25208018. Its totient is φ = 25208016.

The previous prime is 25208011. The next prime is 25208021. The reversal of 25208017 is 71080252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21613201 + 3594816 = 4649^2 + 1896^2 .

It is a cyclic number.

It is not a de Polignac number, because 25208017 - 2³ = 25208009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25207982 and 25208000.

It is not a weakly prime, because it can be changed into another prime (25208011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12604008 + 12604009.

It is an arithmetic number, because the mean of its divisors is an integer number (12604009).

Almost surely, 2^25208017 is an apocalyptic number.

It is an amenable number.

25208017 is a deficient number, since it is larger than the sum of its proper divisors (1).

25208017 is an equidigital number, since it uses as much as digits as its factorization.

25208017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 25208017 is about 5020.7586080193. The cubic root of 25208017 is about 293.2105286854.

Adding to 25208017 its reverse (71080252), we get a palindrome (96288269).

The spelling of 25208017 in words is "twenty-five million, two hundred eight thousand, seventeen".