25680241 has 4 divisors (see below), whose sum is σ = 25690432. Its totient is φ = 25670052.

The previous prime is 25680233. The next prime is 25680247. The reversal of 25680241 is 14208652.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 25680241 - 2³ = 25680233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25680247) 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, 1756 + ... + 7378.

It is an arithmetic number, because the mean of its divisors is an integer number (6422608).

Almost surely, 2^25680241 is an apocalyptic number.

It is an amenable number.

25680241 is a deficient number, since it is larger than the sum of its proper divisors (10191).

25680241 is an equidigital number, since it uses as much as digits as its factorization.

25680241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10190.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 25680241 is about 5067.5675624505. The cubic root of 25680241 is about 295.0301261965.

Adding to 25680241 its reverse (14208652), we get a palindrome (39888893).

It can be divided in two parts, 25680 and 241, that added together give a square (25921 = 161²).

The spelling of 25680241 in words is "twenty-five million, six hundred eighty thousand, two hundred forty-one".