13543025255405 has 8 divisors (see below), whose sum is σ = 16251663365784. Its totient is φ = 10834398164800.

The previous prime is 13543025255377. The next prime is 13543025255453. The reversal of 13543025255405 is 50455252034531.

It can be written as a sum of positive squares in 4 ways, for example, as 81383537284 + 13461641718121 = 285278^2 + 3669011^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13543025255405 - 2⁶ = 13543025255341 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, 245975 + ... + 5210235.

It is an arithmetic number, because the mean of its divisors is an integer number (2031457920723).

Almost surely, 2^{13543025255405} is an apocalyptic number.

It is an amenable number.

13543025255405 is a deficient number, since it is larger than the sum of its proper divisors (2708638110379).

13543025255405 is an equidigital number, since it uses as much as digits as its factorization.

13543025255405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5509887.

The product of its (nonzero) digits is 1800000, while the sum is 44.

Adding to 13543025255405 its reverse (50455252034531), we get a palindrome (63998277289936).

The spelling of 13543025255405 in words is "thirteen trillion, five hundred forty-three billion, twenty-five million, two hundred fifty-five thousand, four hundred five".