25726829 has 2 divisors, whose sum is σ = 25726830. Its totient is φ = 25726828.

The previous prime is 25726801. The next prime is 25726837. The reversal of 25726829 is 92862752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23020804 + 2706025 = 4798^2 + 1645^2 .

It is a cyclic number.

It is not a de Polignac number, because 25726829 - 2⁸ = 25726573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25726849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12863414 + 12863415.

It is an arithmetic number, because the mean of its divisors is an integer number (12863415).

Almost surely, 2^25726829 is an apocalyptic number.

It is an amenable number.

25726829 is a deficient number, since it is larger than the sum of its proper divisors (1).

25726829 is an equidigital number, since it uses as much as digits as its factorization.

25726829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 25726829 is about 5072.1621622342. The cubic root of 25726829 is about 295.2084287821.

The spelling of 25726829 in words is "twenty-five million, seven hundred twenty-six thousand, eight hundred twenty-nine".