25486147 has 2 divisors, whose sum is σ = 25486148. Its totient is φ = 25486146.

The previous prime is 25486127. The next prime is 25486159. The reversal of 25486147 is 74168452.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25486147 is a prime.

It is not a weakly prime, because it can be changed into another prime (25486117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12743073 + 12743074.

It is an arithmetic number, because the mean of its divisors is an integer number (12743074).

Almost surely, 2^25486147 is an apocalyptic number.

25486147 is a deficient number, since it is larger than the sum of its proper divisors (1).

25486147 is an equidigital number, since it uses as much as digits as its factorization.

25486147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 37.

The square root of 25486147 is about 5048.3806314500. The cubic root of 25486147 is about 294.2849559541.

The spelling of 25486147 in words is "twenty-five million, four hundred eighty-six thousand, one hundred forty-seven".