25260017 has 2 divisors, whose sum is σ = 25260018. Its totient is φ = 25260016.

The previous prime is 25260007. The next prime is 25260019. The reversal of 25260017 is 71006252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22287841 + 2972176 = 4721^2 + 1724^2 .

It is a cyclic number.

It is not a de Polignac number, because 25260017 - 2⁶ = 25259953 is a prime.

Together with 25260019, 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 = 25259974 and 25260001.

It is not a weakly prime, because it can be changed into another prime (25260019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12630008 + 12630009.

It is an arithmetic number, because the mean of its divisors is an integer number (12630009).

Almost surely, 2^25260017 is an apocalyptic number.

It is an amenable number.

25260017 is a deficient number, since it is larger than the sum of its proper divisors (1).

25260017 is an equidigital number, since it uses as much as digits as its factorization.

25260017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 25260017 is about 5025.9344404797. The cubic root of 25260017 is about 293.4120052700.

Adding to 25260017 its reverse (71006252), we get a palindrome (96266269).

The spelling of 25260017 in words is "twenty-five million, two hundred sixty thousand, seventeen".