25471441 has 4 divisors (see below), whose sum is σ = 25582900. Its totient is φ = 25359984.

The previous prime is 25471393. The next prime is 25471469. The reversal of 25471441 is 14417452.

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 19395216 + 6076225 = 4404^2 + 2465^2 .

It is a cyclic number.

It is not a de Polignac number, because 25471441 - 2²¹ = 23374289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25471241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55386 + ... + 55843.

It is an arithmetic number, because the mean of its divisors is an integer number (6395725).

Almost surely, 2^25471441 is an apocalyptic number.

It is an amenable number.

25471441 is a deficient number, since it is larger than the sum of its proper divisors (111459).

25471441 is a wasteful number, since it uses less digits than its factorization.

25471441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111458.

The product of its digits is 4480, while the sum is 28.

The square root of 25471441 is about 5046.9239146236. The cubic root of 25471441 is about 294.2283423589.

Adding to 25471441 its reverse (14417452), we get a palindrome (39888893).

The spelling of 25471441 in words is "twenty-five million, four hundred seventy-one thousand, four hundred forty-one".