55123130200 has 24 divisors (see below), whose sum is σ = 128161278180. Its totient is φ = 22049252000.

The previous prime is 55123130191. The next prime is 55123130269. The reversal of 55123130200 is 203132155.

55123130200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 137807626 + ... + 137808025.

Almost surely, 2^55123130200 is an apocalyptic number.

55123130200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55123130200 is an abundant number, since it is smaller than the sum of its proper divisors (73038147980).

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

55123130200 is a wasteful number, since it uses less digits than its factorization.

55123130200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275615667 (or 275615658 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

Adding to 55123130200 its reverse (203132155), we get a palindrome (55326262355).

The spelling of 55123130200 in words is "fifty-five billion, one hundred twenty-three million, one hundred thirty thousand, two hundred".