25956529 has 2 divisors, whose sum is σ = 25956530. Its totient is φ = 25956528.

The previous prime is 25956503. The next prime is 25956533. The reversal of 25956529 is 92565952.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21762225 + 4194304 = 4665^2 + 2048^2 .

It is a cyclic number.

It is not a de Polignac number, because 25956529 - 2⁹ = 25956017 is a prime.

It is not a weakly prime, because it can be changed into another prime (25956559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12978264 + 12978265.

It is an arithmetic number, because the mean of its divisors is an integer number (12978265).

Almost surely, 2^25956529 is an apocalyptic number.

It is an amenable number.

25956529 is a deficient number, since it is larger than the sum of its proper divisors (1).

25956529 is an equidigital number, since it uses as much as digits as its factorization.

25956529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 243000, while the sum is 43.

The square root of 25956529 is about 5094.7550480862. The cubic root of 25956529 is about 296.0844087554.

The spelling of 25956529 in words is "twenty-five million, nine hundred fifty-six thousand, five hundred twenty-nine".