5545519481543 has 4 divisors (see below), whose sum is σ = 5837388927960. Its totient is φ = 5253650035128.

The previous prime is 5545519481531. The next prime is 5545519481549. The reversal of 5545519481543 is 3451849155455.

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 5545519481543 - 2³⁴ = 5528339612359 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 (5545519481549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145934723180 + ... + 145934723217.

It is an arithmetic number, because the mean of its divisors is an integer number (1459347231990).

Almost surely, 2^{5545519481543} is an apocalyptic number.

5545519481543 is a deficient number, since it is larger than the sum of its proper divisors (291869446417).

5545519481543 is a wasteful number, since it uses less digits than its factorization.

5545519481543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291869446416.

The product of its digits is 43200000, while the sum is 59.

The spelling of 5545519481543 in words is "five trillion, five hundred forty-five billion, five hundred nineteen million, four hundred eighty-one thousand, five hundred forty-three".