100800055 has 8 divisors (see below), whose sum is σ = 128075472. Its totient is φ = 75896448.

The previous prime is 100800047. The next prime is 100800061. The reversal of 100800055 is 550008001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100800055 - 2³ = 100800047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 592857 + ... + 593026.

It is an arithmetic number, because the mean of its divisors is an integer number (16009434).

Almost surely, 2^100800055 is an apocalyptic number.

100800055 is a deficient number, since it is larger than the sum of its proper divisors (27275417).

100800055 is a wasteful number, since it uses less digits than its factorization.

100800055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185905.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 100800055 is about 10039.9230574741. The cubic root of 100800055 is about 465.3934389351.

Adding to 100800055 its reverse (550008001), we get a palindrome (650808056).

The spelling of 100800055 in words is "one hundred million, eight hundred thousand, fifty-five".