25606314133 has 4 divisors (see below), whose sum is σ = 25609609420. Its totient is φ = 25603018848.

The previous prime is 25606314109. The next prime is 25606314187. The reversal of 25606314133 is 33141360652.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7246606129 + 18359708004 = 85127^2 + 135498^2 .

It is a cyclic number.

It is not a de Polignac number, because 25606314133 - 2²⁹ = 25069443221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25606314233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1635960 + ... + 1651537.

It is an arithmetic number, because the mean of its divisors is an integer number (6402402355).

Almost surely, 2^25606314133 is an apocalyptic number.

It is an amenable number.

25606314133 is a deficient number, since it is larger than the sum of its proper divisors (3295287).

25606314133 is an equidigital number, since it uses as much as digits as its factorization.

25606314133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3295286.

The product of its (nonzero) digits is 38880, while the sum is 34.

Adding to 25606314133 its reverse (33141360652), we get a palindrome (58747674785).

The spelling of 25606314133 in words is "twenty-five billion, six hundred six million, three hundred fourteen thousand, one hundred thirty-three".