25443241 has 4 divisors (see below), whose sum is σ = 25530372. Its totient is φ = 25356112.

The previous prime is 25443227. The next prime is 25443259. The reversal of 25443241 is 14234452.

It is a happy number.

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 22278400 + 3164841 = 4720^2 + 1779^2 .

It is a cyclic number.

It is not a de Polignac number, because 25443241 - 2¹⁷ = 25312169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25440241) 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, 43126 + ... + 43711.

It is an arithmetic number, because the mean of its divisors is an integer number (6382593).

Almost surely, 2^25443241 is an apocalyptic number.

It is an amenable number.

25443241 is a deficient number, since it is larger than the sum of its proper divisors (87131).

25443241 is an equidigital number, since it uses as much as digits as its factorization.

25443241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87130.

The product of its digits is 3840, while the sum is 25.

The square root of 25443241 is about 5044.1293599590. The cubic root of 25443241 is about 294.1197200113.

Adding to 25443241 its reverse (14234452), we get a palindrome (39677693).

The spelling of 25443241 in words is "twenty-five million, four hundred forty-three thousand, two hundred forty-one".