550505055505 has 8 divisors (see below), whose sum is σ = 660612434472. Its totient is φ = 440399799168.

The previous prime is 550505055479. The next prime is 550505055557. The reversal of 550505055505 is 505550505055.

It can be written as a sum of positive squares in 4 ways, for example, as 184218648849 + 366286406656 = 429207^2 + 605216^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 550505055505 - 2¹¹ = 550505053457 is a prime.

It is a super-2 number, since 2×550505055505² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110299 + ... + 1055071.

It is an arithmetic number, because the mean of its divisors is an integer number (82576554309).

Almost surely, 2^550505055505 is an apocalyptic number.

It is an amenable number.

550505055505 is a deficient number, since it is larger than the sum of its proper divisors (110107378967).

550505055505 is a wasteful number, since it uses less digits than its factorization.

550505055505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061315.

The product of its (nonzero) digits is 390625, while the sum is 40.

The spelling of 550505055505 in words is "five hundred fifty billion, five hundred five million, fifty-five thousand, five hundred five".