1005515500 has 48 divisors (see below), whose sum is σ = 2395699488. Its totient is φ = 365640000.

The previous prime is 1005515477. The next prime is 1005515513. The reversal of 1005515500 is 55155001.

It is a super-2 number, since 2×1005515500² = 2022122841480500000, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85911 + ... + 96910.

It is an arithmetic number, because the mean of its divisors is an integer number (49910406).

Almost surely, 2^1005515500 is an apocalyptic number.

1005515500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1005515500 is an abundant number, since it is smaller than the sum of its proper divisors (1390183988).

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

1005515500 is a wasteful number, since it uses less digits than its factorization.

1005515500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182851 (or 182839 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 22.

The square root of 1005515500 is about 31709.8643957996. The cubic root of 1005515500 is about 1001.8351302370.

The spelling of 1005515500 in words is "one billion, five million, five hundred fifteen thousand, five hundred".