25683133133 has 4 divisors (see below), whose sum is σ = 29352152160. Its totient is φ = 22014114108.

The previous prime is 25683133111. The next prime is 25683133153. The reversal of 25683133133 is 33133138652.

It is a happy number.

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.

It is not a de Polignac number, because 25683133133 - 2⁸ = 25683132877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25683133153) 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, 1834509503 + ... + 1834509516.

It is an arithmetic number, because the mean of its divisors is an integer number (7338038040).

Almost surely, 2^25683133133 is an apocalyptic number.

It is an amenable number.

25683133133 is a deficient number, since it is larger than the sum of its proper divisors (3669019027).

25683133133 is an equidigital number, since it uses as much as digits as its factorization.

25683133133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3669019026.

The product of its digits is 116640, while the sum is 38.

The spelling of 25683133133 in words is "twenty-five billion, six hundred eighty-three million, one hundred thirty-three thousand, one hundred thirty-three".