13550450543 has 6 divisors (see below), whose sum is σ = 15762769056. Its totient is φ = 11614671852.

The previous prime is 13550450531. The next prime is 13550450549. The reversal of 13550450543 is 34505405531.

It is not a de Polignac number, because 13550450543 - 2¹² = 13550446447 is a prime.

It is a super-2 number, since 2×13550450543² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13550450549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 138269855 + ... + 138269952.

It is an arithmetic number, because the mean of its divisors is an integer number (2627128176).

Almost surely, 2^13550450543 is an apocalyptic number.

13550450543 is a deficient number, since it is larger than the sum of its proper divisors (2212318513).

13550450543 is an equidigital number, since it uses as much as digits as its factorization.

13550450543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276539821 (or 276539814 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 35.

The spelling of 13550450543 in words is "thirteen billion, five hundred fifty million, four hundred fifty thousand, five hundred forty-three".