55245541343123 has 4 divisors (see below), whose sum is σ = 55245670760280. Its totient is φ = 55245411925968.

The previous prime is 55245541343117. The next prime is 55245541343137. The reversal of 55245541343123 is 32134314554255.

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 55245541343123 - 2²⁶ = 55245474234259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55245546343123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64066133 + ... + 64922726.

It is an arithmetic number, because the mean of its divisors is an integer number (13811417690070).

Almost surely, 2^{55245541343123} is an apocalyptic number.

55245541343123 is a deficient number, since it is larger than the sum of its proper divisors (129417157).

55245541343123 is a wasteful number, since it uses less digits than its factorization.

55245541343123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129417156.

The product of its digits is 4320000, while the sum is 47.

Adding to 55245541343123 its reverse (32134314554255), we get a palindrome (87379855897378).

The spelling of 55245541343123 in words is "fifty-five trillion, two hundred forty-five billion, five hundred forty-one million, three hundred forty-three thousand, one hundred twenty-three".