13530425543 has 4 divisors (see below), whose sum is σ = 13546104768. Its totient is φ = 13514746320.

The previous prime is 13530425479. The next prime is 13530425567. The reversal of 13530425543 is 34552403531.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13530425543 - 2⁶ = 13530425479 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 (13530425593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7838318 + ... + 7840043.

It is an arithmetic number, because the mean of its divisors is an integer number (3386526192).

Almost surely, 2^13530425543 is an apocalyptic number.

13530425543 is a deficient number, since it is larger than the sum of its proper divisors (15679225).

13530425543 is an equidigital number, since it uses as much as digits as its factorization.

13530425543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15679224.

The product of its (nonzero) digits is 108000, while the sum is 35.

The spelling of 13530425543 in words is "thirteen billion, five hundred thirty million, four hundred twenty-five thousand, five hundred forty-three".