55057720207360 has 384 divisors, whose sum is σ = 147157395840000. Its totient is φ = 19633070407680.

The previous prime is 55057720207351. The next prime is 55057720207381. The reversal of 55057720207360 is 6370202775055.

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, 2059219912 + ... + 2059246648.

It is an arithmetic number, because the mean of its divisors is an integer number (383222385000).

Almost surely, 2^{55057720207360} 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 55057720207360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73578697920000).

55057720207360 is an abundant number, since it is smaller than the sum of its proper divisors (92099675632640).

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

55057720207360 is a wasteful number, since it uses less digits than its factorization.

55057720207360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27307 (or 27287 counting only the distinct ones).

The product of its (nonzero) digits is 3087000, while the sum is 49.

The spelling of 55057720207360 in words is "fifty-five trillion, fifty-seven billion, seven hundred twenty million, two hundred seven thousand, three hundred sixty".