25525241 has 4 divisors (see below), whose sum is σ = 29171712. Its totient is φ = 21878772.

The previous prime is 25525237. The next prime is 25525243. The reversal of 25525241 is 14252552.

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 25525241 - 2² = 25525237 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25525241.

It is not an unprimeable number, because it can be changed into a prime (25525243) 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, 1823225 + ... + 1823238.

It is an arithmetic number, because the mean of its divisors is an integer number (7292928).

Almost surely, 2^25525241 is an apocalyptic number.

It is an amenable number.

25525241 is a deficient number, since it is larger than the sum of its proper divisors (3646471).

25525241 is an equidigital number, since it uses as much as digits as its factorization.

25525241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3646470.

The product of its digits is 4000, while the sum is 26.

The square root of 25525241 is about 5052.2510824384. The cubic root of 25525241 is about 294.4353500560.

Adding to 25525241 its reverse (14252552), we get a palindrome (39777793).

The spelling of 25525241 in words is "twenty-five million, five hundred twenty-five thousand, two hundred forty-one".