25272017 has 2 divisors, whose sum is σ = 25272018. Its totient is φ = 25272016.

The previous prime is 25271993. The next prime is 25272019. The reversal of 25272017 is 71027252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20214016 + 5058001 = 4496^2 + 2249^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25272017 is a prime.

Together with 25272019, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25272019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12636008 + 12636009.

It is an arithmetic number, because the mean of its divisors is an integer number (12636009).

Almost surely, 2^25272017 is an apocalyptic number.

It is an amenable number.

25272017 is a deficient number, since it is larger than the sum of its proper divisors (1).

25272017 is an equidigital number, since it uses as much as digits as its factorization.

25272017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 25272017 is about 5027.1281065833. The cubic root of 25272017 is about 293.4584605918.

Adding to 25272017 its reverse (71027252), we get a palindrome (96299269).

The spelling of 25272017 in words is "twenty-five million, two hundred seventy-two thousand, seventeen".