25826138 has 16 divisors (see below), whose sum is σ = 41803776. Its totient is φ = 11895600.

The previous prime is 25826137. The next prime is 25826161. The reversal of 25826138 is 83162852.

It is a junction number, because it is equal to n+sod(n) for n = 25826098 and 25826107.

It is not an unprimeable number, because it can be changed into a prime (25826137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21863 + ... + 23013.

It is an arithmetic number, because the mean of its divisors is an integer number (2612736).

Almost surely, 2^25826138 is an apocalyptic number.

25826138 is a deficient number, since it is larger than the sum of its proper divisors (15977638).

25826138 is a wasteful number, since it uses less digits than its factorization.

25826138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029.

The product of its digits is 23040, while the sum is 35.

The square root of 25826138 is about 5081.9423452062. The cubic root of 25826138 is about 295.5877890758.

The spelling of 25826138 in words is "twenty-five million, eight hundred twenty-six thousand, one hundred thirty-eight".