55000331283120 has 160 divisors (see below), whose sum is σ = 177954202202112. Its totient is φ = 14025909021696.

The previous prime is 55000331283089. The next prime is 55000331283127. The reversal of 55000331283120 is 2138213300055.

It is not an unprimeable number, because it can be changed into a prime (55000331283127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23427154 + ... + 25667726.

Almost surely, 2^{55000331283120} 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 55000331283120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88977101101056).

55000331283120 is an abundant number, since it is smaller than the sum of its proper divisors (122953870918992).

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

55000331283120 is a wasteful number, since it uses less digits than its factorization.

55000331283120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245059 (or 2245053 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 55000331283120 its reverse (2138213300055), we get a palindrome (57138544583175).

The spelling of 55000331283120 in words is "fifty-five trillion, three hundred thirty-one million, two hundred eighty-three thousand, one hundred twenty".