1005505050 has 48 divisors (see below), whose sum is σ = 2720352672. Its totient is φ = 243758400.

The previous prime is 1005505049. The next prime is 1005505063. The reversal of 1005505050 is 505055001.

It is a super-2 number, since 2×1005505050² = 2022080811151005000, which contains 22 as substring.

It is a Curzon 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, 303049 + ... + 306348.

It is an arithmetic number, because the mean of its divisors is an integer number (56674014).

Almost surely, 2^1005505050 is an apocalyptic number.

1005505050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1005505050 is an abundant number, since it is smaller than the sum of its proper divisors (1714847622).

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

1005505050 is a wasteful number, since it uses less digits than its factorization.

1005505050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609423 (or 609418 counting only the distinct ones).

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

The square root of 1005505050 is about 31709.6996201478. The cubic root of 1005505050 is about 1001.8316596412.

The spelling of 1005505050 in words is "one billion, five million, five hundred five thousand, fifty".