25671841 has 12 divisors (see below), whose sum is σ = 28908628. Its totient is φ = 22660704.

The previous prime is 25671809. The next prime is 25671847. The reversal of 25671841 is 14817652.

It can be written as a sum of positive squares in 2 ways, for example, as 8532241 + 17139600 = 2921^2 + 4140^2 .

It is not a de Polignac number, because 25671841 - 2⁵ = 25671809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25671797 and 25671806.

It is not an unprimeable number, because it can be changed into a prime (25671847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5011 + ... + 8743.

Almost surely, 2^25671841 is an apocalyptic number.

It is an amenable number.

25671841 is a deficient number, since it is larger than the sum of its proper divisors (3236787).

25671841 is a wasteful number, since it uses less digits than its factorization.

25671841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3792 (or 3769 counting only the distinct ones).

The product of its digits is 13440, while the sum is 34.

The square root of 25671841 is about 5066.7386946635. The cubic root of 25671841 is about 294.9979545966.

The spelling of 25671841 in words is "twenty-five million, six hundred seventy-one thousand, eight hundred forty-one".