1005011000055 has 24 divisors (see below), whose sum is σ = 1749830828928. Its totient is φ = 533602247616.

The previous prime is 1005011000041. The next prime is 1005011000069. The reversal of 1005011000055 is 5500001105001.

1005011000055 is a `hidden beast` number, since 10 + 0 + 501 + 100 + 0 + 0 + 55 = 666.

It is an interprime number because it is at equal distance from previous prime (1005011000041) and next prime (1005011000069).

It is not a de Polignac number, because 1005011000055 - 2¹¹ = 1005010998007 is a prime.

It is a super-2 number, since 2×1005011000055² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50065252 + ... + 50085321.

It is an arithmetic number, because the mean of its divisors is an integer number (72909617872).

Almost surely, 2^{1005011000055} is an apocalyptic number.

1005011000055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1005011000055 is a deficient number, since it is larger than the sum of its proper divisors (744819828873).

1005011000055 is a wasteful number, since it uses less digits than its factorization.

1005011000055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100150807 (or 100150804 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

Adding to 1005011000055 its reverse (5500001105001), we get a palindrome (6505012105056).

The spelling of 1005011000055 in words is "one trillion, five billion, eleven million, fifty-five", and thus it is an aban number and an uban number.