55100106 has 12 divisors (see below), whose sum is σ = 119383602. Its totient is φ = 18366696.

The previous prime is 55100081. The next prime is 55100153. The reversal of 55100106 is 60100155.

It can be written as a sum of positive squares in only one way, i.e., 28998225 + 26101881 = 5385^2 + 5109^2 .

It is a super-2 number, since 2×55100106² = 6072043362422472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 3061117 = 55100106 / (5 + 5 + 1 + 0 + 0 + 1 + 0 + 6).

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 5 ways as a sum of consecutive naturals, for example, 1530541 + ... + 1530576.

Almost surely, 2^55100106 is an apocalyptic number.

55100106 is an abundant number, since it is smaller than the sum of its proper divisors (64283496).

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

55100106 is a wasteful number, since it uses less digits than its factorization.

55100106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3061125 (or 3061122 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 55100106 is about 7422.9445639854. The cubic root of 55100106 is about 380.5258325134.

The spelling of 55100106 in words is "fifty-five million, one hundred thousand, one hundred six".