25868843 has 32 divisors (see below), whose sum is σ = 35599872. Its totient is φ = 18144000.

The previous prime is 25868839. The next prime is 25868851. The reversal of 25868843 is 34886852.

It is not a de Polignac number, because 25868843 - 2² = 25868839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25868794 and 25868803.

It is not an unprimeable number, because it can be changed into a prime (25868893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42743 + ... + 43343.

It is an arithmetic number, because the mean of its divisors is an integer number (1112496).

Almost surely, 2^25868843 is an apocalyptic number.

25868843 is a deficient number, since it is larger than the sum of its proper divisors (9731029).

25868843 is a wasteful number, since it uses less digits than its factorization.

25868843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675.

The product of its digits is 368640, while the sum is 44.

The square root of 25868843 is about 5086.1422512549. The cubic root of 25868843 is about 295.7506231428.

Subtracting 25868843 from its reverse (34886852), we obtain a square (9018009 = 3003²).

It can be divided in two parts, 25 and 868843, that added together give a palindrome (868868).

The spelling of 25868843 in words is "twenty-five million, eight hundred sixty-eight thousand, eight hundred forty-three".