100055100 has 36 divisors (see below), whose sum is σ = 289493624. Its totient is φ = 26681280.

The previous prime is 100055099. The next prime is 100055101. The reversal of 100055100 is 1550001.

It is an interprime number because it is at equal distance from previous prime (100055099) and next prime (100055101).

It is a super-2 number, since 2×100055100² = 20022046072020000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100055101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166459 + ... + 167058.

Almost surely, 2^100055100 is an apocalyptic number.

100055100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100055100 is an abundant number, since it is smaller than the sum of its proper divisors (189438524).

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

100055100 is a wasteful number, since it uses less digits than its factorization.

100055100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333534 (or 333527 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 12.

The square root of 100055100 is about 10002.7546206033. The cubic root of 100055100 is about 464.2441182233.

The spelling of 100055100 in words is "one hundred million, fifty-five thousand, one hundred".