25051641 has 8 divisors (see below), whose sum is σ = 33804960. Its totient is φ = 16499712.

The previous prime is 25051613. The next prime is 25051643. The reversal of 25051641 is 14615052.

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

It is not a de Polignac number, because 25051641 - 2⁹ = 25051129 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25051643) 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, 50056 + ... + 50553.

It is an arithmetic number, because the mean of its divisors is an integer number (4225620).

Almost surely, 2^25051641 is an apocalyptic number.

It is an amenable number.

25051641 is a deficient number, since it is larger than the sum of its proper divisors (8753319).

25051641 is a wasteful number, since it uses less digits than its factorization.

25051641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100695.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 25051641 is about 5005.1614359579. The cubic root of 25051641 is about 292.6029676202.

Adding to 25051641 its reverse (14615052), we get a palindrome (39666693).

The spelling of 25051641 in words is "twenty-five million, fifty-one thousand, six hundred forty-one".