5518550383 has 4 divisors (see below), whose sum is σ = 5646888808. Its totient is φ = 5390211960.

The previous prime is 5518550369. The next prime is 5518550393. The reversal of 5518550383 is 3830558155.

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 5518550383 - 2⁹ = 5518549871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 128338381 = 5518550383 / (5 + 5 + 1 + 8 + 5 + 5 + 0 + 3 + 8 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5518550363) 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 3 ways as a sum of consecutive naturals, for example, 64169148 + ... + 64169233.

It is an arithmetic number, because the mean of its divisors is an integer number (1411722202).

Almost surely, 2^5518550383 is an apocalyptic number.

5518550383 is a deficient number, since it is larger than the sum of its proper divisors (128338425).

5518550383 is a wasteful number, since it uses less digits than its factorization.

5518550383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128338424.

The product of its (nonzero) digits is 360000, while the sum is 43.

The square root of 5518550383 is about 74286.9462489878. The cubic root of 5518550383 is about 1767.1564653603.

The spelling of 5518550383 in words is "five billion, five hundred eighteen million, five hundred fifty thousand, three hundred eighty-three".