25725673 has 2 divisors, whose sum is σ = 25725674. Its totient is φ = 25725672.

The previous prime is 25725671. The next prime is 25725751. The reversal of 25725673 is 37652752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25280784 + 444889 = 5028^2 + 667^2 .

It is a cyclic number.

It is not a de Polignac number, because 25725673 - 2¹ = 25725671 is a prime.

Together with 25725671, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (25725671) 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, 12862836 + 12862837.

It is an arithmetic number, because the mean of its divisors is an integer number (12862837).

Almost surely, 2^25725673 is an apocalyptic number.

It is an amenable number.

25725673 is a deficient number, since it is larger than the sum of its proper divisors (1).

25725673 is an equidigital number, since it uses as much as digits as its factorization.

25725673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88200, while the sum is 37.

The square root of 25725673 is about 5072.0482056069. The cubic root of 25725673 is about 295.2040071197.

The spelling of 25725673 in words is "twenty-five million, seven hundred twenty-five thousand, six hundred seventy-three".