25996738 has 4 divisors (see below), whose sum is σ = 38995110. Its totient is φ = 12998368.

The previous prime is 25996703. The next prime is 25996771. The reversal of 25996738 is 83769952.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18722929 + 7273809 = 4327^2 + 2697^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 25996691 and 25996700.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6499183 + ... + 6499186.

Almost surely, 2^25996738 is an apocalyptic number.

25996738 is a deficient number, since it is larger than the sum of its proper divisors (12998372).

25996738 is a wasteful number, since it uses less digits than its factorization.

25996738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12998371.

The product of its digits is 816480, while the sum is 49.

The square root of 25996738 is about 5098.6996381430. The cubic root of 25996738 is about 296.2372170121.

The spelling of 25996738 in words is "twenty-five million, nine hundred ninety-six thousand, seven hundred thirty-eight".