550555005506 has 64 divisors (see below), whose sum is σ = 927601016832. Its totient is φ = 242902800000.

The previous prime is 550555005499. The next prime is 550555005509. The reversal of 550555005506 is 605500555055.

It is a super-2 number, since 2×550555005506² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

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 31 ways as a sum of consecutive naturals, for example, 256907471 + ... + 256909613.

It is an arithmetic number, because the mean of its divisors is an integer number (14493765888).

Almost surely, 2^550555005506 is an apocalyptic number.

550555005506 is a deficient number, since it is larger than the sum of its proper divisors (377046011326).

550555005506 is a wasteful number, since it uses less digits than its factorization.

550555005506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3519.

The product of its (nonzero) digits is 468750, while the sum is 41.

The spelling of 550555005506 in words is "five hundred fifty billion, five hundred fifty-five million, five thousand, five hundred six".