55123130144 has 24 divisors (see below), whose sum is σ = 114235435440. Its totient is φ = 26110956096.

The previous prime is 55123130129. The next prime is 55123130191. The reversal of 55123130144 is 44103132155.

It is a super-2 number, since 2×55123130144² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45330914 + ... + 45332129.

It is an arithmetic number, because the mean of its divisors is an integer number (4759809810).

Almost surely, 2^55123130144 is an apocalyptic number.

It is an amenable number.

55123130144 is an abundant number, since it is smaller than the sum of its proper divisors (59112305296).

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

55123130144 is a wasteful number, since it uses less digits than its factorization.

55123130144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90663072 (or 90663064 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 55123130144 its reverse (44103132155), we get a palindrome (99226262299).

The spelling of 55123130144 in words is "fifty-five billion, one hundred twenty-three million, one hundred thirty thousand, one hundred forty-four".