25979841 has 6 divisors (see below), whose sum is σ = 37526450. Its totient is φ = 17319888.

The previous prime is 25979827. The next prime is 25979843. The reversal of 25979841 is 14897952.

It can be written as a sum of positive squares in only one way, i.e., 21818241 + 4161600 = 4671^2 + 2040^2 .

It is not a de Polignac number, because 25979841 - 2⁷ = 25979713 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25979843) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1443316 + ... + 1443333.

Almost surely, 2^25979841 is an apocalyptic number.

It is an amenable number.

25979841 is a deficient number, since it is larger than the sum of its proper divisors (11546609).

25979841 is a wasteful number, since it uses less digits than its factorization.

25979841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2886655 (or 2886652 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 25979841 is about 5097.0423776932. The cubic root of 25979841 is about 296.1730217129.

The spelling of 25979841 in words is "twenty-five million, nine hundred seventy-nine thousand, eight hundred forty-one".