55147111102 has 4 divisors (see below), whose sum is σ = 82720666656. Its totient is φ = 27573555550.

The previous prime is 55147111093. The next prime is 55147111133. The reversal of 55147111102 is 20111174155.

55147111102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20111174155 = 5 ⋅4022234831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13786777774 + ... + 13786777777.

It is an arithmetic number, because the mean of its divisors is an integer number (20680166664).

Almost surely, 2^55147111102 is an apocalyptic number.

55147111102 is a deficient number, since it is larger than the sum of its proper divisors (27573555554).

55147111102 is a wasteful number, since it uses less digits than its factorization.

55147111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27573555553.

The product of its (nonzero) digits is 1400, while the sum is 28.

Adding to 55147111102 its reverse (20111174155), we get a palindrome (75258285257).

The spelling of 55147111102 in words is "fifty-five billion, one hundred forty-seven million, one hundred eleven thousand, one hundred two".