25343641 has 4 divisors (see below), whose sum is σ = 25933072. Its totient is φ = 24754212.

The previous prime is 25343611. The next prime is 25343693. The reversal of 25343641 is 14634352.

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 25343641 - 2¹³ = 25335449 is a prime.

It is a pancake number, because a pancake can be divided into 25343641 parts by 7119 straight cuts.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25343611) 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, 294651 + ... + 294736.

It is an arithmetic number, because the mean of its divisors is an integer number (6483268).

Almost surely, 2^25343641 is an apocalyptic number.

It is an amenable number.

25343641 is a deficient number, since it is larger than the sum of its proper divisors (589431).

25343641 is an equidigital number, since it uses as much as digits as its factorization.

25343641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589430.

The product of its digits is 8640, while the sum is 28.

The square root of 25343641 is about 5034.2468155624. The cubic root of 25343641 is about 293.7354315395.

Adding to 25343641 its reverse (14634352), we get a palindrome (39977993).

The spelling of 25343641 in words is "twenty-five million, three hundred forty-three thousand, six hundred forty-one".