25316047 has 2 divisors, whose sum is σ = 25316048. Its totient is φ = 25316046.

The previous prime is 25316041. The next prime is 25316051. The reversal of 25316047 is 74061352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25316047 - 2⁷ = 25315919 is a prime.

It is a super-3 number, since 3×25316047³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25316041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12658023 + 12658024.

It is an arithmetic number, because the mean of its divisors is an integer number (12658024).

Almost surely, 2^25316047 is an apocalyptic number.

25316047 is a deficient number, since it is larger than the sum of its proper divisors (1).

25316047 is an equidigital number, since it uses as much as digits as its factorization.

25316047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 25316047 is about 5031.5054407205. The cubic root of 25316047 is about 293.6287870501.

Adding to 25316047 its reverse (74061352), we get a palindrome (99377399).

The spelling of 25316047 in words is "twenty-five million, three hundred sixteen thousand, forty-seven".