550500505 has 8 divisors (see below), whose sum is σ = 660726792. Its totient is φ = 440316288.

The previous prime is 550500499. The next prime is 550500521. The reversal of 550500505 is 505005055.

It can be written as a sum of positive squares in 4 ways, for example, as 19474569 + 531025936 = 4413^2 + 23044^2 .

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 550500505 - 2⁵ = 550500473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 550500505.

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, 43567 + ... + 54763.

It is an arithmetic number, because the mean of its divisors is an integer number (82590849).

Almost surely, 2^550500505 is an apocalyptic number.

It is an amenable number.

550500505 is a deficient number, since it is larger than the sum of its proper divisors (110226287).

550500505 is a wasteful number, since it uses less digits than its factorization.

550500505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21035.

The product of its (nonzero) digits is 3125, while the sum is 25.

The square root of 550500505 is about 23462.7471750432. The cubic root of 550500505 is about 819.5697251854.

The spelling of 550500505 in words is "five hundred fifty million, five hundred thousand, five hundred five".