25241 has 4 divisors (see below), whose sum is σ = 25872. Its totient is φ = 24612.

The previous prime is 25237. The next prime is 25243. The reversal of 25241 is 14252.

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.

It is a cyclic number.

It is not a de Polignac number, because 25241 - 2² = 25237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251 + ... + 336.

It is an arithmetic number, because the mean of its divisors is an integer number (6468).

2²⁵²⁴¹ is an apocalyptic number.

It is an amenable number.

25241 is a deficient number, since it is larger than the sum of its proper divisors (631).

25241 is an equidigital number, since it uses as much as digits as its factorization.

25241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630.

The product of its digits is 80, while the sum is 14.

The square root of 25241 is about 158.8741640419. The cubic root of 25241 is about 29.3338355056. Note that the first 3 decimals are identical.

Adding to 25241 its reverse (14252), we get a palindrome (39493).

The spelling of 25241 in words is "twenty-five thousand, two hundred forty-one".