25979141 has 2 divisors, whose sum is σ = 25979142. Its totient is φ = 25979140.

The previous prime is 25979131. The next prime is 25979159. The reversal of 25979141 is 14197952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20666116 + 5313025 = 4546^2 + 2305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25979141 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 25979095 and 25979104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25979131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12989570 + 12989571.

It is an arithmetic number, because the mean of its divisors is an integer number (12989571).

Almost surely, 2^25979141 is an apocalyptic number.

It is an amenable number.

25979141 is a deficient number, since it is larger than the sum of its proper divisors (1).

25979141 is an equidigital number, since it uses as much as digits as its factorization.

25979141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 38.

The square root of 25979141 is about 5096.9737099577. The cubic root of 25979141 is about 296.1703616636.

The spelling of 25979141 in words is "twenty-five million, nine hundred seventy-nine thousand, one hundred forty-one".