100005550 has 24 divisors (see below), whose sum is σ = 195802200. Its totient is φ = 37896480.

The previous prime is 100005539. The next prime is 100005551. The reversal of 100005550 is 55500001.

It is a super-2 number, since 2×100005550² = 20002220061605000, which contains 22 as substring.

100005550 is a modest number, since divided by 5550 gives 100 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100005551) 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 11 ways as a sum of consecutive naturals, for example, 51685 + ... + 53584.

It is an arithmetic number, because the mean of its divisors is an integer number (8158425).

Almost surely, 2^100005550 is an apocalyptic number.

100005550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100005550 is a deficient number, since it is larger than the sum of its proper divisors (95796650).

100005550 is a wasteful number, since it uses less digits than its factorization.

100005550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105300 (or 105295 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 16.

The square root of 100005550 is about 10000.2774961498. The cubic root of 100005550 is about 464.1674701418.

Adding to 100005550 its reverse (55500001), we get a palindrome (155505551).

The spelling of 100005550 in words is "one hundred million, five thousand, five hundred fifty".