55100099 has 4 divisors (see below), whose sum is σ = 55157136. Its totient is φ = 55043064.

The previous prime is 55100081. The next prime is 55100153. The reversal of 55100099 is 99000155.

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 55100099 - 2¹² = 55096003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55100039) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 27044 + ... + 29009.

It is an arithmetic number, because the mean of its divisors is an integer number (13789284).

Almost surely, 2^55100099 is an apocalyptic number.

55100099 is a deficient number, since it is larger than the sum of its proper divisors (57037).

55100099 is an equidigital number, since it uses as much as digits as its factorization.

55100099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57036.

The product of its (nonzero) digits is 2025, while the sum is 29.

The square root of 55100099 is about 7422.9440924744. The cubic root of 55100099 is about 380.5258163992.

The spelling of 55100099 in words is "fifty-five million, one hundred thousand, ninety-nine".