5519955543 has 4 divisors (see below), whose sum is σ = 7359940728. Its totient is φ = 3679970360.

The previous prime is 5519955533. The next prime is 5519955577. The reversal of 5519955543 is 3455599155.

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 5519955543 - 2⁶ = 5519955479 is a prime.

It is a super-3 number, since 3×5519955543³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5519955533) 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, 919992588 + ... + 919992593.

It is an arithmetic number, because the mean of its divisors is an integer number (1839985182).

Almost surely, 2^5519955543 is an apocalyptic number.

5519955543 is a deficient number, since it is larger than the sum of its proper divisors (1839985185).

5519955543 is a wasteful number, since it uses less digits than its factorization.

5519955543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839985184.

The product of its digits is 3037500, while the sum is 51.

The square root of 5519955543 is about 74296.4032978717. The cubic root of 5519955543 is about 1767.3064399418.

The spelling of 5519955543 in words is "five billion, five hundred nineteen million, nine hundred fifty-five thousand, five hundred forty-three".