13506542975125 has 8 divisors (see below), whose sum is σ = 16856165633112. Its totient is φ = 10805234380000.

The previous prime is 13506542975077. The next prime is 13506542975131. The reversal of 13506542975125 is 52157924560531.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 289588201956 + 13216954773169 = 538134^2 + 3635513^2 .

It is not a de Polignac number, because 13506542975125 - 2²⁵ = 13506509420693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54026171776 + ... + 54026172025.

It is an arithmetic number, because the mean of its divisors is an integer number (2107020704139).

Almost surely, 2^{13506542975125} is an apocalyptic number.

It is an amenable number.

13506542975125 is a deficient number, since it is larger than the sum of its proper divisors (3349622657987).

13506542975125 is an equidigital number, since it uses as much as digits as its factorization.

13506542975125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108052343816 (or 108052343806 counting only the distinct ones).

The product of its (nonzero) digits is 11340000, while the sum is 55.

The spelling of 13506542975125 in words is "thirteen trillion, five hundred six billion, five hundred forty-two million, nine hundred seventy-five thousand, one hundred twenty-five".