1005000555 has 16 divisors (see below), whose sum is σ = 1731693600. Its totient is φ = 494769408.

The previous prime is 1005000547. The next prime is 1005000587. The reversal of 1005000555 is 5550005001.

It is not a de Polignac number, because 1005000555 - 2³ = 1005000547 is a prime.

It is a super-2 number, since 2×1005000555² = 2020052231100616050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2576730 + ... + 2577119.

It is an arithmetic number, because the mean of its divisors is an integer number (108230850).

Almost surely, 2^1005000555 is an apocalyptic number.

1005000555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1005000555 is a deficient number, since it is larger than the sum of its proper divisors (726693045).

1005000555 is a wasteful number, since it uses less digits than its factorization.

1005000555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5153870.

The product of its (nonzero) digits is 625, while the sum is 21.

The square root of 1005000555 is about 31701.7437217576. The cubic root of 1005000555 is about 1001.6640809652.

Adding to 1005000555 its reverse (5550005001), we get a palindrome (6555005556).

The spelling of 1005000555 in words is "one billion, five million, five hundred fifty-five", and thus it is an aban number.