25633379 has 2 divisors, whose sum is σ = 25633380. Its totient is φ = 25633378.

The previous prime is 25633369. The next prime is 25633381. The reversal of 25633379 is 97333652.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25633379 is a prime.

Together with 25633381, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25633319) 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, 12816689 + 12816690.

It is an arithmetic number, because the mean of its divisors is an integer number (12816690).

Almost surely, 2^25633379 is an apocalyptic number.

25633379 is a deficient number, since it is larger than the sum of its proper divisors (1).

25633379 is an equidigital number, since it uses as much as digits as its factorization.

25633379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102060, while the sum is 38.

The square root of 25633379 is about 5062.9417338144. The cubic root of 25633379 is about 294.8505572671.

The spelling of 25633379 in words is "twenty-five million, six hundred thirty-three thousand, three hundred seventy-nine".