1005056005 has 8 divisors (see below), whose sum is σ = 1209544992. Its totient is φ = 801726288.

The previous prime is 1005055999. The next prime is 1005056009. The reversal of 1005056005 is 5006505001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1005056005 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005056009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287907 + ... + 291376.

It is an arithmetic number, because the mean of its divisors is an integer number (151193124).

Almost surely, 2^1005056005 is an apocalyptic number.

It is an amenable number.

1005056005 is a deficient number, since it is larger than the sum of its proper divisors (204488987).

1005056005 is an equidigital number, since it uses as much as digits as its factorization.

1005056005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579635.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 1005056005 is about 31702.6182672662. The cubic root of 1005056005 is about 1001.6825025974.

The spelling of 1005056005 in words is "one billion, five million, fifty-six thousand, five".