50550000505 has 4 divisors (see below), whose sum is σ = 60660000612. Its totient is φ = 40440000400.

The previous prime is 50550000499. The next prime is 50550000521. The reversal of 50550000505 is 50500005505.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17473667344 + 33076333161 = 132188^2 + 181869^2 .

It is not a de Polignac number, because 50550000505 - 2¹³ = 50549992313 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 50550000505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5055000046 + ... + 5055000055.

It is an arithmetic number, because the mean of its divisors is an integer number (15165000153).

Almost surely, 2^50550000505 is an apocalyptic number.

It is an amenable number.

50550000505 is a deficient number, since it is larger than the sum of its proper divisors (10110000107).

50550000505 is a wasteful number, since it uses less digits than its factorization.

50550000505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10110000106.

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

Subtracting from 50550000505 its reverse (50500005505), we obtain a triangular number (49995000 = T₉₉₉₉).

The spelling of 50550000505 in words is "fifty billion, five hundred fifty million, five hundred five", and thus it is an aban number.