25985747 has 2 divisors, whose sum is σ = 25985748. Its totient is φ = 25985746.

The previous prime is 25985693. The next prime is 25985761. The reversal of 25985747 is 74758952.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25985747 - 2¹⁶ = 25920211 is a prime.

It is not a weakly prime, because it can be changed into another prime (25985797) 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, 12992873 + 12992874.

It is an arithmetic number, because the mean of its divisors is an integer number (12992874).

Almost surely, 2^25985747 is an apocalyptic number.

25985747 is a deficient number, since it is larger than the sum of its proper divisors (1).

25985747 is an equidigital number, since it uses as much as digits as its factorization.

25985747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 705600, while the sum is 47.

The square root of 25985747 is about 5097.6217003618. The cubic root of 25985747 is about 296.1954630272.

The spelling of 25985747 in words is "twenty-five million, nine hundred eighty-five thousand, seven hundred forty-seven".