550505555499 has 8 divisors (see below), whose sum is σ = 753845445520. Its totient is φ = 357084684576.

The previous prime is 550505555441. The next prime is 550505555521. The reversal of 550505555499 is 994555505055.

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

It is not a de Polignac number, because 550505555499 - 2²¹ = 550503458347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550505551499) 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, 2479754644 + ... + 2479754865.

It is an arithmetic number, because the mean of its divisors is an integer number (94230680690).

Almost surely, 2^550505555499 is an apocalyptic number.

550505555499 is a deficient number, since it is larger than the sum of its proper divisors (203339890021).

550505555499 is a wasteful number, since it uses less digits than its factorization.

550505555499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4959509549.

The product of its (nonzero) digits is 25312500, while the sum is 57.

The spelling of 550505555499 in words is "five hundred fifty billion, five hundred five million, five hundred fifty-five thousand, four hundred ninety-nine".