25889047 has 2 divisors, whose sum is σ = 25889048. Its totient is φ = 25889046.

The previous prime is 25889041. The next prime is 25889051. The reversal of 25889047 is 74098852.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25889047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25888994 and 25889012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25889041) 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, 12944523 + 12944524.

It is an arithmetic number, because the mean of its divisors is an integer number (12944524).

Almost surely, 2^25889047 is an apocalyptic number.

25889047 is a deficient number, since it is larger than the sum of its proper divisors (1).

25889047 is an equidigital number, since it uses as much as digits as its factorization.

25889047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 25889047 is about 5088.1280447725. The cubic root of 25889047 is about 295.8275985046.

The spelling of 25889047 in words is "twenty-five million, eight hundred eighty-nine thousand, forty-seven".