25443243201105 has 12 divisors (see below), whose sum is σ = 44101621548660. Its totient is φ = 13569729707232.

The previous prime is 25443243201091. The next prime is 25443243201119. The reversal of 25443243201105 is 50110234234452.

It is a happy number.

25443243201105 is a `hidden beast` number, since 2 + 5 + 4 + 4 + 324 + 320 + 1 + 1 + 0 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (25443243201091) and next prime (25443243201119).

It can be written as a sum of positive squares in 2 ways, for example, as 3157885377936 + 22285357823169 = 1777044^2 + 4720737^2 .

It is not a de Polignac number, because 25443243201105 - 2²³ = 25443234812497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25443243201105.

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, 282702702190 + ... + 282702702279.

It is an arithmetic number, because the mean of its divisors is an integer number (3675135129055).

Almost surely, 2^{25443243201105} is an apocalyptic number.

It is an amenable number.

25443243201105 is a deficient number, since it is larger than the sum of its proper divisors (18658378347555).

25443243201105 is a wasteful number, since it uses less digits than its factorization.

25443243201105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565405404480 (or 565405404477 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 25443243201105 its reverse (50110234234452), we get a palindrome (75553477435557).

The spelling of 25443243201105 in words is "twenty-five trillion, four hundred forty-three billion, two hundred forty-three million, two hundred one thousand, one hundred five".