25396823 has 2 divisors, whose sum is σ = 25396824. Its totient is φ = 25396822.

The previous prime is 25396783. The next prime is 25396871. The reversal of 25396823 is 32869352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25396823 - 2¹² = 25392727 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25396883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12698411 + 12698412.

It is an arithmetic number, because the mean of its divisors is an integer number (12698412).

Almost surely, 2^25396823 is an apocalyptic number.

25396823 is a deficient number, since it is larger than the sum of its proper divisors (1).

25396823 is an equidigital number, since it uses as much as digits as its factorization.

25396823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 38.

The square root of 25396823 is about 5039.5260689870. The cubic root of 25396823 is about 293.9407496254.

The spelling of 25396823 in words is "twenty-five million, three hundred ninety-six thousand, eight hundred twenty-three".