55510111101 has 48 divisors (see below), whose sum is σ = 81052754816. Its totient is φ = 33760779264.

The previous prime is 55510111091. The next prime is 55510111117. The reversal of 55510111101 is 10111101555.

It is not a de Polignac number, because 55510111101 - 2⁶ = 55510111037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55510111201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8882760 + ... + 8889006.

Almost surely, 2^55510111101 is an apocalyptic number.

55510111101 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

55510111101 is a deficient number, since it is larger than the sum of its proper divisors (25542643715).

55510111101 is a wasteful number, since it uses less digits than its factorization.

55510111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6598 (or 6581 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 21.

Adding to 55510111101 its reverse (10111101555), we get a palindrome (65621212656).

The spelling of 55510111101 in words is "fifty-five billion, five hundred ten million, one hundred eleven thousand, one hundred one".