55305025303280 has 40 divisors (see below), whose sum is σ = 128585785753824. Its totient is φ = 22121734521600.

The previous prime is 55305025303223. The next prime is 55305025303289. The reversal of 55305025303280 is 8230352050355.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55305025303289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2216750 + ... + 10748210.

Almost surely, 2^{55305025303280} is an apocalyptic number.

It is an amenable number.

55305025303280 is an abundant number, since it is smaller than the sum of its proper divisors (73280760450544).

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

55305025303280 is a wasteful number, since it uses less digits than its factorization.

55305025303280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8612505 (or 8612499 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 41.

The spelling of 55305025303280 in words is "fifty-five trillion, three hundred five billion, twenty-five million, three hundred three thousand, two hundred eighty".