1005000055 has 8 divisors (see below), whose sum is σ = 1206710352. Its totient is φ = 803526528.

The previous prime is 1005000049. The next prime is 1005000089. The reversal of 1005000055 is 5500005001.

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

It is a cyclic number.

It is not a de Polignac number, because 1005000055 - 2³ = 1005000047 is a prime.

It is a super-2 number, since 2×1005000055² = 2020050221100006050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49714 + ... + 66943.

It is an arithmetic number, because the mean of its divisors is an integer number (150838794).

Almost surely, 2^1005000055 is an apocalyptic number.

1005000055 is a deficient number, since it is larger than the sum of its proper divisors (201710297).

1005000055 is a wasteful number, since it uses less digits than its factorization.

1005000055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118385.

The product of its (nonzero) digits is 125, while the sum is 16.

The square root of 1005000055 is about 31701.7358357551. The cubic root of 1005000055 is about 1001.6639148518.

Adding to 1005000055 its reverse (5500005001), we get a palindrome (6505005056).

The spelling of 1005000055 in words is "one billion, five million, fifty-five", and thus it is an aban number and an uban number.