25688043 has 16 divisors (see below), whose sum is σ = 38580640. Its totient is φ = 16889472.

The previous prime is 25688041. The next prime is 25688059. The reversal of 25688043 is 34088652.

It is not a de Polignac number, because 25688043 - 2¹ = 25688041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25687989 and 25688007.

It is not an unprimeable number, because it can be changed into a prime (25688041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4546 + ... + 8487.

It is an arithmetic number, because the mean of its divisors is an integer number (2411290).

Almost surely, 2^25688043 is an apocalyptic number.

25688043 is a deficient number, since it is larger than the sum of its proper divisors (12892597).

25688043 is a wasteful number, since it uses less digits than its factorization.

25688043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13115 (or 13109 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 25688043 is about 5068.3373013248. The cubic root of 25688043 is about 295.0600012014.

The spelling of 25688043 in words is "twenty-five million, six hundred eighty-eight thousand, forty-three".