25313147 has 2 divisors, whose sum is σ = 25313148. Its totient is φ = 25313146.

The previous prime is 25313137. The next prime is 25313161. The reversal of 25313147 is 74131352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25313147 - 2⁴ = 25313131 is a prime.

It is a super-2 number, since 2×25313147² = 1281510822087218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25313107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12656573 + 12656574.

It is an arithmetic number, because the mean of its divisors is an integer number (12656574).

Almost surely, 2^25313147 is an apocalyptic number.

25313147 is a deficient number, since it is larger than the sum of its proper divisors (1).

25313147 is an equidigital number, since it uses as much as digits as its factorization.

25313147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 26.

The square root of 25313147 is about 5031.2172483406. The cubic root of 25313147 is about 293.6175747151.

Adding to 25313147 its reverse (74131352), we get a palindrome (99444499).

The spelling of 25313147 in words is "twenty-five million, three hundred thirteen thousand, one hundred forty-seven".