25677017 has 2 divisors, whose sum is σ = 25677018. Its totient is φ = 25677016.

The previous prime is 25677007. The next prime is 25677019. The reversal of 25677017 is 71077652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23775376 + 1901641 = 4876^2 + 1379^2 .

It is a cyclic number.

It is not a de Polignac number, because 25677017 - 2¹² = 25672921 is a prime.

Together with 25677019, 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 (25677019) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12838508 + 12838509.

It is an arithmetic number, because the mean of its divisors is an integer number (12838509).

Almost surely, 2^25677017 is an apocalyptic number.

It is an amenable number.

25677017 is a deficient number, since it is larger than the sum of its proper divisors (1).

25677017 is an equidigital number, since it uses as much as digits as its factorization.

25677017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20580, while the sum is 35.

The square root of 25677017 is about 5067.2494511322. The cubic root of 25677017 is about 295.0177792598.

The spelling of 25677017 in words is "twenty-five million, six hundred seventy-seven thousand, seventeen".