25015147 has 2 divisors, whose sum is σ = 25015148. Its totient is φ = 25015146.

The previous prime is 25015103. The next prime is 25015157. The reversal of 25015147 is 74151052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25015147 - 2¹⁹ = 24490859 is a prime.

It is not a weakly prime, because it can be changed into another prime (25015157) 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, 12507573 + 12507574.

It is an arithmetic number, because the mean of its divisors is an integer number (12507574).

Almost surely, 2^25015147 is an apocalyptic number.

25015147 is a deficient number, since it is larger than the sum of its proper divisors (1).

25015147 is an equidigital number, since it uses as much as digits as its factorization.

25015147 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 25015147 is about 5001.5144706379. The cubic root of 25015147 is about 292.4608153611.

Adding to 25015147 its reverse (74151052), we get a palindrome (99166199).

The spelling of 25015147 in words is "twenty-five million, fifteen thousand, one hundred forty-seven".