25105147 has 2 divisors, whose sum is σ = 25105148. Its totient is φ = 25105146.

The previous prime is 25105139. The next prime is 25105151. The reversal of 25105147 is 74150152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25105147 - 2³ = 25105139 is a prime.

It is not a weakly prime, because it can be changed into another prime (25105127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12552573 + 12552574.

It is an arithmetic number, because the mean of its divisors is an integer number (12552574).

Almost surely, 2^25105147 is an apocalyptic number.

25105147 is a deficient number, since it is larger than the sum of its proper divisors (1).

25105147 is an equidigital number, since it uses as much as digits as its factorization.

25105147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 25105147 is about 5010.5036672973. The cubic root of 25105147 is about 292.8111360379.

Adding to 25105147 its reverse (74150152), we get a palindrome (99255299).

It can be divided in two parts, 25105 and 147, that added together give a palindrome (25252).

The spelling of 25105147 in words is "twenty-five million, one hundred five thousand, one hundred forty-seven".