25125017 has 2 divisors, whose sum is σ = 25125018. Its totient is φ = 25125016.

The previous prime is 25125007. The next prime is 25125019. The reversal of 25125017 is 71052152.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23658496 + 1466521 = 4864^2 + 1211^2 .

It is a cyclic number.

It is not a de Polignac number, because 25125017 - 2⁸ = 25124761 is a prime.

Together with 25125019, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 25124983 and 25125001.

It is not a weakly prime, because it can be changed into another prime (25125019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12562508 + 12562509.

It is an arithmetic number, because the mean of its divisors is an integer number (12562509).

Almost surely, 2^25125017 is an apocalyptic number.

It is an amenable number.

25125017 is a deficient number, since it is larger than the sum of its proper divisors (1).

25125017 is an equidigital number, since it uses as much as digits as its factorization.

25125017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 25125017 is about 5012.4861097064. The cubic root of 25125017 is about 292.8883661902. Note that the first 3 decimals are identical.

Adding to 25125017 its reverse (71052152), we get a palindrome (96177169).

The spelling of 25125017 in words is "twenty-five million, one hundred twenty-five thousand, seventeen".