13531341554551 has 4 divisors (see below), whose sum is σ = 13531350094600. Its totient is φ = 13531333014504.

The previous prime is 13531341554537. The next prime is 13531341554569. The reversal of 13531341554551 is 15545514313531.

It is a happy number.

13531341554551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13531341554551 - 2¹⁵ = 13531341521783 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 (13531341554651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1117521 + ... + 5320858.

It is an arithmetic number, because the mean of its divisors is an integer number (3382837523650).

Almost surely, 2^{13531341554551} is an apocalyptic number.

13531341554551 is a deficient number, since it is larger than the sum of its proper divisors (8540049).

13531341554551 is an equidigital number, since it uses as much as digits as its factorization.

13531341554551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8540048.

The product of its digits is 1350000, while the sum is 46.

The spelling of 13531341554551 in words is "thirteen trillion, five hundred thirty-one billion, three hundred forty-one million, five hundred fifty-four thousand, five hundred fifty-one".