25989738 has 16 divisors (see below), whose sum is σ = 52036896. Its totient is φ = 8653680.

The previous prime is 25989737. The next prime is 25989751. The reversal of 25989738 is 83798952.

It is not an unprimeable number, because it can be changed into a prime (25989737) 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, 5493 + ... + 9063.

It is an arithmetic number, because the mean of its divisors is an integer number (3252306).

Almost surely, 2^25989738 is an apocalyptic number.

25989738 is an abundant number, since it is smaller than the sum of its proper divisors (26047158).

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

25989738 is a wasteful number, since it uses less digits than its factorization.

25989738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4789.

The product of its digits is 1088640, while the sum is 51.

The square root of 25989738 is about 5098.0131423918. The cubic root of 25989738 is about 296.2106258981.

The spelling of 25989738 in words is "twenty-five million, nine hundred eighty-nine thousand, seven hundred thirty-eight".