25652123445163 has 4 divisors (see below), whose sum is σ = 26277784992648. Its totient is φ = 25026461897680.

The previous prime is 25652123445107. The next prime is 25652123445173. The reversal of 25652123445163 is 36154432125652.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25652123445163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25652123445103) 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, 312830773681 + ... + 312830773762.

It is an arithmetic number, because the mean of its divisors is an integer number (6569446248162).

Almost surely, 2^{25652123445163} is an apocalyptic number.

25652123445163 is a deficient number, since it is larger than the sum of its proper divisors (625661547485).

25652123445163 is an equidigital number, since it uses as much as digits as its factorization.

25652123445163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625661547484.

The product of its digits is 5184000, while the sum is 49.

The spelling of 25652123445163 in words is "twenty-five trillion, six hundred fifty-two billion, one hundred twenty-three million, four hundred forty-five thousand, one hundred sixty-three".