55131134124 has 96 divisors (see below), whose sum is σ = 146490124032. Its totient is φ = 15988320000.

The previous prime is 55131134117. The next prime is 55131134189. The reversal of 55131134124 is 42143113155.

It is a junction number, because it is equal to n+sod(n) for n = 55131134091 and 55131134100.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205399 + ... + 390449.

It is an arithmetic number, because the mean of its divisors is an integer number (1525938792).

Almost surely, 2^55131134124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55131134124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73245062016).

55131134124 is an abundant number, since it is smaller than the sum of its proper divisors (91358989908).

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

55131134124 is a wasteful number, since it uses less digits than its factorization.

55131134124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185167 (or 185165 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

Adding to 55131134124 its reverse (42143113155), we get a palindrome (97274247279).

The spelling of 55131134124 in words is "fifty-five billion, one hundred thirty-one million, one hundred thirty-four thousand, one hundred twenty-four".