100550100 has 72 divisors (see below), whose sum is σ = 332492608. Its totient is φ = 22982400.

The previous prime is 100550083. The next prime is 100550113. The reversal of 100550100 is 1055001.

It is a super-2 number, since 2×100550100² = 20220645220020000, 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 an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21841 + ... + 26040.

Almost surely, 2^100550100 is an apocalyptic number.

100550100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100550100 is an abundant number, since it is smaller than the sum of its proper divisors (231942508).

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

100550100 is a wasteful number, since it uses less digits than its factorization.

100550100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47905 (or 47898 counting only the distinct ones).

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

The square root of 100550100 is about 10027.4672774335. The cubic root of 100550100 is about 465.0084401289.

The spelling of 100550100 in words is "one hundred million, five hundred fifty thousand, one hundred".