505550000490 has 32 divisors (see below), whose sum is σ = 1215112250880. Its totient is φ = 134614194624.

The previous prime is 505550000477. The next prime is 505550000507. The reversal of 505550000490 is 94000055505.

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 15 ways as a sum of consecutive naturals, for example, 12425530 + ... + 12466149.

It is an arithmetic number, because the mean of its divisors is an integer number (37972257840).

Almost surely, 2^505550000490 is an apocalyptic number.

505550000490 is an abundant number, since it is smaller than the sum of its proper divisors (709562250390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505550000490 is a wasteful number, since it uses less digits than its factorization.

505550000490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24892366.

The product of its (nonzero) digits is 22500, while the sum is 33.

Adding to 505550000490 its reverse (94000055505), we get a palindrome (599550055995).

The spelling of 505550000490 in words is "five hundred five billion, five hundred fifty million, four hundred ninety", and thus it is an aban number.