25693696 has 80 divisors (see below), whose sum is σ = 60103296. Its totient is φ = 10745856.

The previous prime is 25693669. The next prime is 25693697. The reversal of 25693696 is 69639652.

25693696 is a nontrivial binomial coefficient, being equal to C(7169, 2).

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25693697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240075 + ... + 240181.

Almost surely, 2^25693696 is an apocalyptic number.

25693696 is the 7168-th triangular number.

25693696 is the 2390-th centered nonagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25693696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30051648).

25693696 is an abundant number, since it is smaller than the sum of its proper divisors (34409600).

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

25693696 is an equidigital number, since it uses as much as digits as its factorization.

25693696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 183 counting only the distinct ones).

The product of its digits is 524880, while the sum is 46.

The square root of 25693696 is about 5068.8949486057. The cubic root of 25693696 is about 295.0816435903.

The spelling of 25693696 in words is "twenty-five million, six hundred ninety-three thousand, six hundred ninety-six".