25795729 has 2 divisors, whose sum is σ = 25795730. Its totient is φ = 25795728.

The previous prime is 25795717. The next prime is 25795739. The reversal of 25795729 is 92759752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18905104 + 6890625 = 4348^2 + 2625^2 .

It is a cyclic number.

It is not a de Polignac number, because 25795729 - 2¹⁷ = 25664657 is a prime.

It is not a weakly prime, because it can be changed into another prime (25795709) 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, 12897864 + 12897865.

It is an arithmetic number, because the mean of its divisors is an integer number (12897865).

Almost surely, 2^25795729 is an apocalyptic number.

It is an amenable number.

25795729 is a deficient number, since it is larger than the sum of its proper divisors (1).

25795729 is an equidigital number, since it uses as much as digits as its factorization.

25795729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 396900, while the sum is 46.

The square root of 25795729 is about 5078.9495961271. The cubic root of 25795729 is about 295.4717301792.

The spelling of 25795729 in words is "twenty-five million, seven hundred ninety-five thousand, seven hundred twenty-nine".