25998983 has 2 divisors, whose sum is σ = 25998984. Its totient is φ = 25998982.

The previous prime is 25998971. The next prime is 25999009. The reversal of 25998983 is 38989952.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25998983 - 2¹⁴ = 25982599 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25998913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12999491 + 12999492.

It is an arithmetic number, because the mean of its divisors is an integer number (12999492).

Almost surely, 2^25998983 is an apocalyptic number.

25998983 is a deficient number, since it is larger than the sum of its proper divisors (1).

25998983 is an equidigital number, since it uses as much as digits as its factorization.

25998983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1399680, while the sum is 53.

The square root of 25998983 is about 5098.9197875629. The cubic root of 25998983 is about 296.2457441513.

The spelling of 25998983 in words is "twenty-five million, nine hundred ninety-eight thousand, nine hundred eighty-three".