25641116 has 6 divisors (see below), whose sum is σ = 44871960. Its totient is φ = 12820556.

The previous prime is 25641103. The next prime is 25641157. The reversal of 25641116 is 61114652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3205136 + ... + 3205143.

It is an arithmetic number, because the mean of its divisors is an integer number (7478660).

Almost surely, 2^25641116 is an apocalyptic number.

It is an amenable number.

25641116 is a deficient number, since it is larger than the sum of its proper divisors (19230844).

25641116 is a wasteful number, since it uses less digits than its factorization.

25641116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6410283 (or 6410281 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

The square root of 25641116 is about 5063.7057576443. The cubic root of 25641116 is about 294.8802194936.

Adding to 25641116 its reverse (61114652), we get a palindrome (86755768).

The spelling of 25641116 in words is "twenty-five million, six hundred forty-one thousand, one hundred sixteen".