25147 has 2 divisors, whose sum is σ = 25148. Its totient is φ = 25146.

The previous prime is 25127. The next prime is 25153. The reversal of 25147 is 74152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25147 - 2¹¹ = 23099 is a prime.

25147 is a lucky number.

It is a plaindrome in base 12.

It is not a weakly prime, because it can be changed into another prime (25117) 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, 12573 + 12574.

It is an arithmetic number, because the mean of its divisors is an integer number (12574).

2²⁵¹⁴⁷ is an apocalyptic number.

25147 is a deficient number, since it is larger than the sum of its proper divisors (1).

25147 is an equidigital number, since it uses as much as digits as its factorization.

25147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 280, while the sum is 19.

The square root of 25147 is about 158.5780564895. The cubic root of 25147 is about 29.2973761662.

Adding to 25147 its reverse (74152), we get a palindrome (99299).

The spelling of 25147 in words is "twenty-five thousand, one hundred forty-seven".