25727323105 has 12 divisors (see below), whose sum is σ = 33934552596. Its totient is φ = 18710780000.

The previous prime is 25727323093. The next prime is 25727323129. The reversal of 25727323105 is 50132372752.

It can be written as a sum of positive squares in 2 ways, for example, as 17377566976 + 8349756129 = 131824^2 + 91377^2 .

It is not a de Polignac number, because 25727323105 - 2²⁵ = 25693768673 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21261646 + ... + 21262855.

It is an arithmetic number, because the mean of its divisors is an integer number (2827879383).

Almost surely, 2^25727323105 is an apocalyptic number.

It is an amenable number.

25727323105 is a deficient number, since it is larger than the sum of its proper divisors (8207229491).

25727323105 is a wasteful number, since it uses less digits than its factorization.

25727323105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42524528 (or 42524517 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 37.

Adding to 25727323105 its reverse (50132372752), we get a palindrome (75859695857).

The spelling of 25727323105 in words is "twenty-five billion, seven hundred twenty-seven million, three hundred twenty-three thousand, one hundred five".