25560106205 has 12 divisors (see below), whose sum is σ = 31693473756. Its totient is φ = 19788465600.

The previous prime is 25560106199. The next prime is 25560106207. The reversal of 25560106205 is 50260106552.

It can be written as a sum of positive squares in 2 ways, for example, as 5110248196 + 20449858009 = 71486^2 + 143003^2 .

It is not a de Polignac number, because 25560106205 - 2⁶ = 25560106141 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 (25560106207) 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 11 ways as a sum of consecutive naturals, for example, 2654936 + ... + 2664545.

It is an arithmetic number, because the mean of its divisors is an integer number (2641122813).

Almost surely, 2^25560106205 is an apocalyptic number.

It is an amenable number.

25560106205 is a deficient number, since it is larger than the sum of its proper divisors (6133367551).

25560106205 is an equidigital number, since it uses as much as digits as its factorization.

25560106205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5319548 (or 5319517 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 25560106205 in words is "twenty-five billion, five hundred sixty million, one hundred six thousand, two hundred five".