25601879 has 2 divisors, whose sum is σ = 25601880. Its totient is φ = 25601878.

The previous prime is 25601869. The next prime is 25601893. The reversal of 25601879 is 97810652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25601879 - 2⁸ = 25601623 is a prime.

It is a Sophie Germain 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 (25601869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12800939 + 12800940.

It is an arithmetic number, because the mean of its divisors is an integer number (12800940).

Almost surely, 2^25601879 is an apocalyptic number.

25601879 is a deficient number, since it is larger than the sum of its proper divisors (1).

25601879 is an equidigital number, since it uses as much as digits as its factorization.

25601879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 25601879 is about 5059.8299378536. The cubic root of 25601879 is about 294.7297304390.

The spelling of 25601879 in words is "twenty-five million, six hundred one thousand, eight hundred seventy-nine".