25860829 has 2 divisors, whose sum is σ = 25860830. Its totient is φ = 25860828.

The previous prime is 25860803. The next prime is 25860839. The reversal of 25860829 is 92806852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24700900 + 1159929 = 4970^2 + 1077^2 .

It is a cyclic number.

It is not a de Polignac number, because 25860829 - 2⁵ = 25860797 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 25860791 and 25860800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25860839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12930414 + 12930415.

It is an arithmetic number, because the mean of its divisors is an integer number (12930415).

Almost surely, 2^25860829 is an apocalyptic number.

It is an amenable number.

25860829 is a deficient number, since it is larger than the sum of its proper divisors (1).

25860829 is an equidigital number, since it uses as much as digits as its factorization.

25860829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 25860829 is about 5085.3543632671. The cubic root of 25860829 is about 295.7200794460.

The spelling of 25860829 in words is "twenty-five million, eight hundred sixty thousand, eight hundred twenty-nine".