550550005531 has 4 divisors (see below), whose sum is σ = 582935299992. Its totient is φ = 518164711072.

The previous prime is 550550005519. The next prime is 550550005561. The reversal of 550550005531 is 135500055055.

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 550550005531 - 2¹¹ = 550550003483 is a prime.

It is a super-2 number, since 2×550550005531² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550550005561) 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, 16192647205 + ... + 16192647238.

It is an arithmetic number, because the mean of its divisors is an integer number (145733824998).

Almost surely, 2^550550005531 is an apocalyptic number.

550550005531 is a deficient number, since it is larger than the sum of its proper divisors (32385294461).

550550005531 is a wasteful number, since it uses less digits than its factorization.

550550005531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32385294460.

The product of its (nonzero) digits is 46875, while the sum is 34.

The spelling of 550550005531 in words is "five hundred fifty billion, five hundred fifty million, five thousand, five hundred thirty-one".