25653940005 has 16 divisors (see below), whose sum is σ = 41298125760. Its totient is φ = 13598160768.

The previous prime is 25653940001. The next prime is 25653940021. The reversal of 25653940005 is 50004935652.

It is not a de Polignac number, because 25653940005 - 2² = 25653940001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25653940001) 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 15 ways as a sum of consecutive naturals, for example, 5243760 + ... + 5248649.

It is an arithmetic number, because the mean of its divisors is an integer number (2581132860).

Almost surely, 2^25653940005 is an apocalyptic number.

It is an amenable number.

25653940005 is a deficient number, since it is larger than the sum of its proper divisors (15644185755).

25653940005 is a wasteful number, since it uses less digits than its factorization.

25653940005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10492580.

The product of its (nonzero) digits is 162000, while the sum is 39.

The spelling of 25653940005 in words is "twenty-five billion, six hundred fifty-three million, nine hundred forty thousand, five".