550000000505 has 4 divisors (see below), whose sum is σ = 660000000612. Its totient is φ = 440000000400.

The previous prime is 550000000499. The next prime is 550000000577. The reversal of 550000000505 is 505000000055.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505000000055 = 5 ⋅101000000011.

It can be written as a sum of positive squares in 2 ways, for example, as 189552261376 + 360447739129 = 435376^2 + 600373^2 .

It is not a de Polignac number, because 550000000505 - 2¹⁰ = 549999999481 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55000000046 + ... + 55000000055.

It is an arithmetic number, because the mean of its divisors is an integer number (165000000153).

Almost surely, 2^550000000505 is an apocalyptic number.

It is an amenable number.

550000000505 is a deficient number, since it is larger than the sum of its proper divisors (110000000107).

550000000505 is a wasteful number, since it uses less digits than its factorization.

550000000505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110000000106.

The product of its (nonzero) digits is 625, while the sum is 20.

It can be divided in two parts, 55000000050 and 5, that added together give a palindrome (55000000055).

The spelling of 550000000505 in words is "five hundred fifty billion, five hundred five", and thus it is an aban number.