25538641 has 12 divisors (see below), whose sum is σ = 28563280. Its totient is φ = 22766400.

The previous prime is 25538627. The next prime is 25538651. The reversal of 25538641 is 14683552.

It is not a de Polignac number, because 25538641 - 2¹¹ = 25536593 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

25538641 is a Rhonda number in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 25538597 and 25538606.

It is not an unprimeable number, because it can be changed into a prime (25538651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3166 + ... + 7816.

Almost surely, 2^25538641 is an apocalyptic number.

It is an amenable number.

25538641 is a deficient number, since it is larger than the sum of its proper divisors (3024639).

25538641 is a wasteful number, since it uses less digits than its factorization.

25538641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4704 (or 4687 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 25538641 is about 5053.5770499716. The cubic root of 25538641 is about 294.4868643392.

The spelling of 25538641 in words is "twenty-five million, five hundred thirty-eight thousand, six hundred forty-one".