505000505489 has 4 divisors (see below), whose sum is σ = 506784959856. Its totient is φ = 503216051124.

The previous prime is 505000505473. The next prime is 505000505519. The reversal of 505000505489 is 984505000505.

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 505000505489 - 2⁴ = 505000505473 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 (505000505189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 892226759 + ... + 892227324.

It is an arithmetic number, because the mean of its divisors is an integer number (126696239964).

Almost surely, 2^505000505489 is an apocalyptic number.

It is an amenable number.

505000505489 is a deficient number, since it is larger than the sum of its proper divisors (1784454367).

505000505489 is a wasteful number, since it uses less digits than its factorization.

505000505489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784454366.

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

The spelling of 505000505489 in words is "five hundred five billion, five hundred five thousand, four hundred eighty-nine".