25540241 has 8 divisors (see below), whose sum is σ = 25932960. Its totient is φ = 25150048.

The previous prime is 25540217. The next prime is 25540243. The reversal of 25540241 is 14204552.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25540241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25540243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30470 + ... + 31296.

It is an arithmetic number, because the mean of its divisors is an integer number (3241620).

Almost surely, 2^25540241 is an apocalyptic number.

It is an amenable number.

25540241 is a deficient number, since it is larger than the sum of its proper divisors (392719).

25540241 is an equidigital number, since it uses as much as digits as its factorization.

25540241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 25540241 is about 5053.7353512031. The cubic root of 25540241 is about 294.4930140940.

Adding to 25540241 its reverse (14204552), we get a palindrome (39744793).

The spelling of 25540241 in words is "twenty-five million, five hundred forty thousand, two hundred forty-one".