1005500056 has 32 divisors (see below), whose sum is σ = 2069352000. Its totient is φ = 454235040.

The previous prime is 1005500053. The next prime is 1005500059. The reversal of 1005500056 is 6500055001.

It is an interprime number because it is at equal distance from previous prime (1005500053) and next prime (1005500059).

It is a super-2 number, since 2×1005500056² = 2022060725232006272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005500053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20706 + ... + 49393.

It is an arithmetic number, because the mean of its divisors is an integer number (64667250).

Almost surely, 2^1005500056 is an apocalyptic number.

It is an amenable number.

1005500056 is an abundant number, since it is smaller than the sum of its proper divisors (1063851944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1005500056 is a wasteful number, since it uses less digits than its factorization.

1005500056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70279 (or 70275 counting only the distinct ones).

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

The square root of 1005500056 is about 31709.6208744286. The cubic root of 1005500056 is about 1001.8300010533.

Adding to 1005500056 its reverse (6500055001), we get a palindrome (7505555057).

Subtracting 1005500056 from its reverse (6500055001), we obtain a palindrome (5494554945).

The spelling of 1005500056 in words is "one billion, five million, five hundred thousand, fifty-six".