55100123 has 8 divisors (see below), whose sum is σ = 59511648. Its totient is φ = 50713344.

The previous prime is 55100081. The next prime is 55100153. The reversal of 55100123 is 32100155.

55100123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55100123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55100153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1415 + ... + 10592.

It is an arithmetic number, because the mean of its divisors is an integer number (7438956).

Almost surely, 2^55100123 is an apocalyptic number.

55100123 is a deficient number, since it is larger than the sum of its proper divisors (4411525).

55100123 is a wasteful number, since it uses less digits than its factorization.

55100123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12373.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 55100123 is about 7422.9457090834. The cubic root of 55100123 is about 380.5258716478.

Adding to 55100123 its reverse (32100155), we get a palindrome (87200278).

The spelling of 55100123 in words is "fifty-five million, one hundred thousand, one hundred twenty-three".