25696133 has 4 divisors (see below), whose sum is σ = 25707840. Its totient is φ = 25684428.

The previous prime is 25696109. The next prime is 25696141. The reversal of 25696133 is 33169652.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 25696133 - 2¹⁶ = 25630597 is a prime.

It is a deceptive number, since it divides R_25696132.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25696093 and 25696102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25696103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1463 + ... + 7316.

It is an arithmetic number, because the mean of its divisors is an integer number (6426960).

It is a Poulet number, since it divides 2^25696132-1.

Almost surely, 2^25696133 is an apocalyptic number.

25696133 is the 2927-th octagonal number.

It is an amenable number.

25696133 is a deficient number, since it is larger than the sum of its proper divisors (11707).

25696133 is an equidigital number, since it uses as much as digits as its factorization.

25696133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11706.

The product of its digits is 29160, while the sum is 35.

The square root of 25696133 is about 5069.1353306062. The cubic root of 25696133 is about 295.0909726131.

The spelling of 25696133 in words is "twenty-five million, six hundred ninety-six thousand, one hundred thirty-three".