550555005505 has 8 divisors (see below), whose sum is σ = 661929233472.
Its totient is φ = 439601853168.
The previous prime is 550555005499. The next prime is 550555005509. The reversal of 550555005505 is 505500555055.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-550555005505 is a prime.
It is a super-2 number, since 2×5505550055052 (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 (550555005509) 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, 105266029 + ... + 105271258.
It is an arithmetic number, because the mean of its divisors is an integer number (82741154184).
Almost surely, 2550555005505 is an apocalyptic number.
It is an amenable number.
550555005505 is a deficient number, since it is larger than the sum of its proper divisors (111374227967).
550555005505 is a wasteful number, since it uses less digits than its factorization.
550555005505 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 210537815.
The product of its (nonzero) digits is 390625, while the sum is 40.
The spelling of 550555005505 in words is "five hundred fifty billion, five hundred fifty-five million, five thousand, five hundred five".