25996538 has 16 divisors (see below), whose sum is σ = 40450560. Its totient is φ = 12517200.

The previous prime is 25996511. The next prime is 25996543. The reversal of 25996538 is 83569952.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25996492 and 25996501.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13283 + ... + 15113.

It is an arithmetic number, because the mean of its divisors is an integer number (2528160).

Almost surely, 2^25996538 is an apocalyptic number.

25996538 is a deficient number, since it is larger than the sum of its proper divisors (14454022).

25996538 is a wasteful number, since it uses less digits than its factorization.

25996538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2093.

The product of its digits is 583200, while the sum is 47.

The square root of 25996538 is about 5098.6800252614. The cubic root of 25996538 is about 296.2364573322.

The spelling of 25996538 in words is "twenty-five million, nine hundred ninety-six thousand, five hundred thirty-eight".