25234643 has 8 divisors (see below), whose sum is σ = 28944480. Its totient is φ = 21551040.

The previous prime is 25234637. The next prime is 25234757. The reversal of 25234643 is 34643252.

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

It is not a de Polignac number, because 25234643 - 2¹² = 25230547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25234043) 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, 4448 + ... + 8381.

It is an arithmetic number, because the mean of its divisors is an integer number (3618060).

Almost surely, 2^25234643 is an apocalyptic number.

25234643 is a deficient number, since it is larger than the sum of its proper divisors (3709837).

25234643 is a wasteful number, since it uses less digits than its factorization.

25234643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13117.

The product of its digits is 17280, while the sum is 29.

The square root of 25234643 is about 5023.4094995332. The cubic root of 25234643 is about 293.3137270240.

Adding to 25234643 its reverse (34643252), we get a palindrome (59877895).

The spelling of 25234643 in words is "twenty-five million, two hundred thirty-four thousand, six hundred forty-three".