13533552331 has 12 divisors (see below), whose sum is σ = 14761507152. Its totient is φ = 12334302864.

The previous prime is 13533552299. The next prime is 13533552343. The reversal of 13533552331 is 13325533531.

It is not a de Polignac number, because 13533552331 - 2⁵ = 13533552299 is a prime.

It is a super-2 number, since 2×13533552331² (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 (13533552371) 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 11 ways as a sum of consecutive naturals, for example, 2271 + ... + 164536.

It is an arithmetic number, because the mean of its divisors is an integer number (1230125596).

Almost surely, 2^13533552331 is an apocalyptic number.

13533552331 is a deficient number, since it is larger than the sum of its proper divisors (1227954821).

13533552331 is an equidigital number, since it uses as much as digits as its factorization.

13533552331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166978 (or 166899 counting only the distinct ones).

The product of its digits is 60750, while the sum is 34.

The spelling of 13533552331 in words is "thirteen billion, five hundred thirty-three million, five hundred fifty-two thousand, three hundred thirty-one".