1005500550 has 24 divisors (see below), whose sum is σ = 2493641736. Its totient is φ = 268133440.

The previous prime is 1005500477. The next prime is 1005500599. The reversal of 1005500550 is 550055001.

1005500550 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1005500550² = 2022062712100605000, which 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 11 ways as a sum of consecutive naturals, for example, 3351519 + ... + 3351818.

It is an arithmetic number, because the mean of its divisors is an integer number (103901739).

Almost surely, 2^1005500550 is an apocalyptic number.

1005500550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1005500550 is an abundant number, since it is smaller than the sum of its proper divisors (1488141186).

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

1005500550 is a wasteful number, since it uses less digits than its factorization.

1005500550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6703352 (or 6703347 counting only the distinct ones).

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

The square root of 1005500550 is about 31709.6286638617. The cubic root of 1005500550 is about 1001.8301651189.

Adding to 1005500550 its reverse (550055001), we get a palindrome (1555555551).

The spelling of 1005500550 in words is "one billion, five million, five hundred thousand, five hundred fifty".