25845973 has 2 divisors, whose sum is σ = 25845974. Its totient is φ = 25845972.

The previous prime is 25845959. The next prime is 25845977. The reversal of 25845973 is 37954852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25170289 + 675684 = 5017^2 + 822^2 .

It is a cyclic number.

It is not a de Polignac number, because 25845973 - 2¹⁷ = 25714901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25845977) 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, 12922986 + 12922987.

It is an arithmetic number, because the mean of its divisors is an integer number (12922987).

Almost surely, 2^25845973 is an apocalyptic number.

It is an amenable number.

25845973 is a deficient number, since it is larger than the sum of its proper divisors (1).

25845973 is an equidigital number, since it uses as much as digits as its factorization.

25845973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400, while the sum is 43.

The square root of 25845973 is about 5083.8934882627. The cubic root of 25845973 is about 295.6634421922.

The spelling of 25845973 in words is "twenty-five million, eight hundred forty-five thousand, nine hundred seventy-three".