13550043541 has 8 divisors (see below), whose sum is σ = 13918405464. Its totient is φ = 13181794560.

The previous prime is 13550043509. The next prime is 13550043601. The reversal of 13550043541 is 14534005531.

It can be written as a sum of positive squares in 4 ways, for example, as 7115597316 + 6434446225 = 84354^2 + 80215^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13550043541 - 2⁵ = 13550043509 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 (13556043541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252321 + ... + 301273.

It is an arithmetic number, because the mean of its divisors is an integer number (1739800683).

Almost surely, 2^13550043541 is an apocalyptic number.

It is an amenable number.

13550043541 is a deficient number, since it is larger than the sum of its proper divisors (368361923).

13550043541 is an equidigital number, since it uses as much as digits as its factorization.

13550043541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56471.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 13550043541 in words is "thirteen billion, five hundred fifty million, forty-three thousand, five hundred forty-one".