25936434 has 12 divisors (see below), whose sum is σ = 56195646. Its totient is φ = 8645472.

The previous prime is 25936423. The next prime is 25936447. The reversal of 25936434 is 43463952.

25936434 is a `hidden beast` number, since 2 + 5 + 9 + 3 + 643 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 24532209 + 1404225 = 4953^2 + 1185^2 .

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 5 ways as a sum of consecutive naturals, for example, 720439 + ... + 720474.

Almost surely, 2^25936434 is an apocalyptic number.

25936434 is an abundant number, since it is smaller than the sum of its proper divisors (30259212).

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

25936434 is a wasteful number, since it uses less digits than its factorization.

25936434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440921 (or 1440918 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 25936434 is about 5092.7825400266. The cubic root of 25936434 is about 296.0079815841.

The spelling of 25936434 in words is "twenty-five million, nine hundred thirty-six thousand, four hundred thirty-four".