25837939 has 2 divisors, whose sum is σ = 25837940. Its totient is φ = 25837938.

The previous prime is 25837937. The next prime is 25837949. The reversal of 25837939 is 93973852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25837939 - 2¹ = 25837937 is a prime.

Together with 25837937, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (25837937) 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, 12918969 + 12918970.

It is an arithmetic number, because the mean of its divisors is an integer number (12918970).

Almost surely, 2^25837939 is an apocalyptic number.

25837939 is a deficient number, since it is larger than the sum of its proper divisors (1).

25837939 is an equidigital number, since it uses as much as digits as its factorization.

25837939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 46.

The square root of 25837939 is about 5083.1032844120. The cubic root of 25837939 is about 295.6328041987.

The spelling of 25837939 in words is "twenty-five million, eight hundred thirty-seven thousand, nine hundred thirty-nine".