25330517 has 2 divisors, whose sum is σ = 25330518. Its totient is φ = 25330516.

The previous prime is 25330507. The next prime is 25330541. The reversal of 25330517 is 71503352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17230801 + 8099716 = 4151^2 + 2846^2 .

It is a cyclic number.

It is not a de Polignac number, because 25330517 - 2⁶ = 25330453 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25330507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12665258 + 12665259.

It is an arithmetic number, because the mean of its divisors is an integer number (12665259).

Almost surely, 2^25330517 is an apocalyptic number.

It is an amenable number.

25330517 is a deficient number, since it is larger than the sum of its proper divisors (1).

25330517 is an equidigital number, since it uses as much as digits as its factorization.

25330517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 25330517 is about 5032.9431747239. The cubic root of 25330517 is about 293.6847199439.

Adding to 25330517 its reverse (71503352), we get a palindrome (96833869).

The spelling of 25330517 in words is "twenty-five million, three hundred thirty thousand, five hundred seventeen".