25586947 has 2 divisors, whose sum is σ = 25586948. Its totient is φ = 25586946.

The previous prime is 25586927. The next prime is 25587013. The reversal of 25586947 is 74968552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25586947 - 2¹⁹ = 25062659 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 25586897 and 25586906.

It is not a weakly prime, because it can be changed into another prime (25586927) 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, 12793473 + 12793474.

It is an arithmetic number, because the mean of its divisors is an integer number (12793474).

Almost surely, 2^25586947 is an apocalyptic number.

25586947 is a deficient number, since it is larger than the sum of its proper divisors (1).

25586947 is an equidigital number, since it uses as much as digits as its factorization.

25586947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 46.

The square root of 25586947 is about 5058.3541789796. The cubic root of 25586947 is about 294.6724200595.

The spelling of 25586947 in words is "twenty-five million, five hundred eighty-six thousand, nine hundred forty-seven".