100055500 has 48 divisors (see below), whose sum is σ = 220881024. Its totient is φ = 39590400.

The previous prime is 100055441. The next prime is 100055509. The reversal of 100055500 is 5550001.

It is a super-2 number, since 2×100055500² = 20022206160500000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100055509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47469 + ... + 49531.

It is an arithmetic number, because the mean of its divisors is an integer number (4601688).

Almost surely, 2^100055500 is an apocalyptic number.

100055500 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 100055500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110440512).

100055500 is an abundant number, since it is smaller than the sum of its proper divisors (120825524).

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

100055500 is a wasteful number, since it uses less digits than its factorization.

100055500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2179 (or 2167 counting only the distinct ones).

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

The square root of 100055500 is about 10002.7746150756. The cubic root of 100055500 is about 464.2447368738.

The spelling of 100055500 in words is "one hundred million, fifty-five thousand, five hundred".