100055000 has 40 divisors (see below), whose sum is σ = 234440580. Its totient is φ = 40020000.

The previous prime is 100054987. The next prime is 100055003. The reversal of 100055000 is 550001.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×100055000² = 20022006050000000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (11) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100055003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5006 + ... + 15005.

Almost surely, 2^100055000 is an apocalyptic number.

100055000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100055000 is an abundant number, since it is smaller than the sum of its proper divisors (134385580).

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

100055000 is an equidigital number, since it uses as much as digits as its factorization.

100055000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20037 (or 20018 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 11.

The square root of 100055000 is about 10002.7496219789. The cubic root of 100055000 is about 464.2439635604.

The spelling of 100055000 in words is "one hundred million, fifty-five thousand".