25865941 has 4 divisors (see below), whose sum is σ = 26757900. Its totient is φ = 24973984.

The previous prime is 25865929. The next prime is 25865951. The reversal of 25865941 is 14956852.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17766225 + 8099716 = 4215^2 + 2846^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25865941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25865894 and 25865903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25865911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 445936 + ... + 445993.

It is an arithmetic number, because the mean of its divisors is an integer number (6689475).

Almost surely, 2^25865941 is an apocalyptic number.

It is an amenable number.

25865941 is a deficient number, since it is larger than the sum of its proper divisors (891959).

25865941 is an equidigital number, since it uses as much as digits as its factorization.

25865941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891958.

The product of its digits is 86400, while the sum is 40.

The square root of 25865941 is about 5085.8569582716. The cubic root of 25865941 is about 295.7395635011.

The spelling of 25865941 in words is "twenty-five million, eight hundred sixty-five thousand, nine hundred forty-one".