505550000489 has 4 divisors (see below), whose sum is σ = 505669491840. Its totient is φ = 505430509140.

The previous prime is 505550000477. The next prime is 505550000507. The reversal of 505550000489 is 984000055505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 505550000489 - 2⁸ = 505550000233 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (505550000419) by changing a digit.

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, 59739329 + ... + 59747790.

It is an arithmetic number, because the mean of its divisors is an integer number (126417372960).

Almost surely, 2^505550000489 is an apocalyptic number.

It is an amenable number.

505550000489 is a deficient number, since it is larger than the sum of its proper divisors (119491351).

505550000489 is a wasteful number, since it uses less digits than its factorization.

505550000489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119491350.

The product of its (nonzero) digits is 180000, while the sum is 41.

The spelling of 505550000489 in words is "five hundred five billion, five hundred fifty million, four hundred eighty-nine", and thus it is an aban number.