550555555499 has 16 divisors (see below), whose sum is σ = 576917170176. Its totient is φ = 524734848000.

The previous prime is 550555555481. The next prime is 550555555549. The reversal of 550555555499 is 994555555055.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550555555499 is a prime.

It is a super-2 number, since 2×550555555499² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (550555555469) 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 15 ways as a sum of consecutive naturals, for example, 11089259 + ... + 11138795.

It is an arithmetic number, because the mean of its divisors is an integer number (36057323136).

Almost surely, 2^550555555499 is an apocalyptic number.

550555555499 is a deficient number, since it is larger than the sum of its proper divisors (26361614677).

550555555499 is a wasteful number, since it uses less digits than its factorization.

550555555499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54986.

The product of its (nonzero) digits is 126562500, while the sum is 62.

The spelling of 550555555499 in words is "five hundred fifty billion, five hundred fifty-five million, five hundred fifty-five thousand, four hundred ninety-nine".