100555799 has 4 divisors (see below), whose sum is σ = 106470864. Its totient is φ = 94640736.

The previous prime is 100555783. The next prime is 100555813. The reversal of 100555799 is 997555001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100555799 - 2⁴ = 100555783 is a prime.

It is a super-2 number, since 2×100555799² = 20222937425056802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100555699) 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 3 ways as a sum of consecutive naturals, for example, 2957507 + ... + 2957540.

It is an arithmetic number, because the mean of its divisors is an integer number (26617716).

Almost surely, 2^100555799 is an apocalyptic number.

100555799 is a deficient number, since it is larger than the sum of its proper divisors (5915065).

100555799 is an equidigital number, since it uses as much as digits as its factorization.

100555799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5915064.

The product of its (nonzero) digits is 70875, while the sum is 41.

The square root of 100555799 is about 10027.7514428709. The cubic root of 100555799 is about 465.0172252454.

The spelling of 100555799 in words is "one hundred million, five hundred fifty-five thousand, seven hundred ninety-nine".