25842829 has 2 divisors, whose sum is σ = 25842830. Its totient is φ = 25842828.

The previous prime is 25842827. The next prime is 25842851. The reversal of 25842829 is 92824852.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22610025 + 3232804 = 4755^2 + 1798^2 .

It is a cyclic number.

It is not a de Polignac number, because 25842829 - 2¹ = 25842827 is a prime.

Together with 25842827, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 25842791 and 25842800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25842827) 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, 12921414 + 12921415.

It is an arithmetic number, because the mean of its divisors is an integer number (12921415).

Almost surely, 2^25842829 is an apocalyptic number.

It is an amenable number.

25842829 is a deficient number, since it is larger than the sum of its proper divisors (1).

25842829 is an equidigital number, since it uses as much as digits as its factorization.

25842829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92160, while the sum is 40.

The square root of 25842829 is about 5083.5842670305. The cubic root of 25842829 is about 295.6514531735.

The spelling of 25842829 in words is "twenty-five million, eight hundred forty-two thousand, eight hundred twenty-nine".