505000556667 has 8 divisors (see below), whose sum is σ = 748148972880. Its totient is φ = 336667037760.

The previous prime is 505000556633. The next prime is 505000556701. The reversal of 505000556667 is 766655000505.

It is an interprime number because it is at equal distance from previous prime (505000556633) and next prime (505000556701).

It is not a de Polignac number, because 505000556667 - 2¹⁴ = 505000540283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505000556267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9351862134 + ... + 9351862187.

It is an arithmetic number, because the mean of its divisors is an integer number (93518621610).

Almost surely, 2^505000556667 is an apocalyptic number.

505000556667 is a deficient number, since it is larger than the sum of its proper divisors (243148416213).

505000556667 is a wasteful number, since it uses less digits than its factorization.

505000556667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18703724330 (or 18703724324 counting only the distinct ones).

The product of its (nonzero) digits is 945000, while the sum is 45.

The spelling of 505000556667 in words is "five hundred five billion, five hundred fifty-six thousand, six hundred sixty-seven".