25674161 has 2 divisors, whose sum is σ = 25674162. Its totient is φ = 25674160.

The previous prime is 25674151. The next prime is 25674163. The reversal of 25674161 is 16147652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22848400 + 2825761 = 4780^2 + 1681^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25674161 is a prime.

Together with 25674163, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (25674163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12837080 + 12837081.

It is an arithmetic number, because the mean of its divisors is an integer number (12837081).

Almost surely, 2^25674161 is an apocalyptic number.

It is an amenable number.

25674161 is a deficient number, since it is larger than the sum of its proper divisors (1).

25674161 is an equidigital number, since it uses as much as digits as its factorization.

25674161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 32.

The square root of 25674161 is about 5066.9676336049. The cubic root of 25674161 is about 295.0068407875.

The spelling of 25674161 in words is "twenty-five million, six hundred seventy-four thousand, one hundred sixty-one".