25825823 has 2 divisors, whose sum is σ = 25825824. Its totient is φ = 25825822.

The previous prime is 25825819. The next prime is 25825829. The reversal of 25825823 is 32852852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25825823 - 2² = 25825819 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25825829) 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, 12912911 + 12912912.

It is an arithmetic number, because the mean of its divisors is an integer number (12912912).

Almost surely, 2^25825823 is an apocalyptic number.

25825823 is a deficient number, since it is larger than the sum of its proper divisors (1).

25825823 is an equidigital number, since it uses as much as digits as its factorization.

25825823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38400, while the sum is 35.

The square root of 25825823 is about 5081.9113530246. The cubic root of 25825823 is about 295.5865873148.

The spelling of 25825823 in words is "twenty-five million, eight hundred twenty-five thousand, eight hundred twenty-three".