25782834 has 32 divisors (see below), whose sum is σ = 64290816. Its totient is φ = 6696720.

The previous prime is 25782817. The next prime is 25782853. The reversal of 25782834 is 43828752.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25782792 and 25782801.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 27442 + ... + 28365.

It is an arithmetic number, because the mean of its divisors is an integer number (2009088).

Almost surely, 2^25782834 is an apocalyptic number.

25782834 is an abundant number, since it is smaller than the sum of its proper divisors (38507982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25782834 is a wasteful number, since it uses less digits than its factorization.

25782834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55830.

The product of its digits is 107520, while the sum is 39.

The square root of 25782834 is about 5077.6799820390. The cubic root of 25782834 is about 295.4224876216.

The spelling of 25782834 in words is "twenty-five million, seven hundred eighty-two thousand, eight hundred thirty-four".