1005000500 has 96 divisors (see below), whose sum is σ = 2534208768. Its totient is φ = 341040000.

The previous prime is 1005000473. The next prime is 1005000547. The reversal of 1005000500 is 50005001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 352079 + ... + 354921.

It is an arithmetic number, because the mean of its divisors is an integer number (26398008).

Almost surely, 2^1005000500 is an apocalyptic number.

1005000500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1005000500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1267104384).

1005000500 is an abundant number, since it is smaller than the sum of its proper divisors (1529208268).

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

1005000500 is a wasteful number, since it uses less digits than its factorization.

1005000500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2970 (or 2958 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 11.

The square root of 1005000500 is about 31701.7428542975. The cubic root of 1005000500 is about 1001.6640626927.

Adding to 1005000500 its reverse (50005001), we get a palindrome (1055005501).

The spelling of 1005000500 in words is "one billion, five million, five hundred", and thus it is an aban number.