13575457531 has 4 divisors (see below), whose sum is σ = 13575861000. Its totient is φ = 13575054064.

The previous prime is 13575457513. The next prime is 13575457537.

13575457531 is nontrivially palindromic in base 10.

13575457531 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.

It is a cyclic number.

It is not a de Polignac number, because 13575457531 - 2⁹ = 13575457019 is a prime.

It is a super-2 number, since 2×13575457531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13575457537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146161 + ... + 220258.

It is an arithmetic number, because the mean of its divisors is an integer number (3393965250).

Almost surely, 2^13575457531 is an apocalyptic number.

13575457531 is a deficient number, since it is larger than the sum of its proper divisors (403469).

13575457531 is an equidigital number, since it uses as much as digits as its factorization.

13575457531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403468.

The product of its digits is 1102500, while the sum is 46.

The spelling of 13575457531 in words is "thirteen billion, five hundred seventy-five million, four hundred fifty-seven thousand, five hundred thirty-one".