25819679 has 2 divisors, whose sum is σ = 25819680. Its totient is φ = 25819678.

The previous prime is 25819643. The next prime is 25819681. The reversal of 25819679 is 97691852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25819679 - 2¹⁶ = 25754143 is a prime.

Together with 25819681, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25819699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12909839 + 12909840.

It is an arithmetic number, because the mean of its divisors is an integer number (12909840).

Almost surely, 2^25819679 is an apocalyptic number.

25819679 is a deficient number, since it is larger than the sum of its proper divisors (1).

25819679 is an equidigital number, since it uses as much as digits as its factorization.

25819679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 47.

The square root of 25819679 is about 5081.3068201005. The cubic root of 25819679 is about 295.5631452994.

The spelling of 25819679 in words is "twenty-five million, eight hundred nineteen thousand, six hundred seventy-nine".