505556001005 has 8 divisors (see below), whose sum is σ = 661818765024. Its totient is φ = 367677091600.

The previous prime is 505556000977. The next prime is 505556001023. The reversal of 505556001005 is 500100655505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 505556001005 - 2¹² = 505555996909 is a prime.

It is a super-2 number, since 2×505556001005² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4595963591 + ... + 4595963700.

It is an arithmetic number, because the mean of its divisors is an integer number (82727345628).

Almost surely, 2^505556001005 is an apocalyptic number.

505556001005 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

505556001005 is a deficient number, since it is larger than the sum of its proper divisors (156262764019).

505556001005 is a wasteful number, since it uses less digits than its factorization.

505556001005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9191927307.

The product of its (nonzero) digits is 18750, while the sum is 32.

The spelling of 505556001005 in words is "five hundred five billion, five hundred fifty-six million, one thousand, five".