55055552525280 has 72 divisors (see below), whose sum is σ = 187877072997432. Its totient is φ = 14681480673024.

The previous prime is 55055552525249. The next prime is 55055552525317. The reversal of 55055552525280 is 8252525555055.

55055552525280 is a `hidden beast` number, since 5 + 5 + 0 + 5 + 5 + 552 + 5 + 2 + 5 + 2 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×55055552525280² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19116509854 + ... + 19116512733.

It is an arithmetic number, because the mean of its divisors is an integer number (2609403791631).

Almost surely, 2^{55055552525280} is an apocalyptic number.

It is an amenable number.

55055552525280 is an abundant number, since it is smaller than the sum of its proper divisors (132821520472152).

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

55055552525280 is a wasteful number, since it uses less digits than its factorization.

55055552525280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38233022608 (or 38233022597 counting only the distinct ones).

The product of its (nonzero) digits is 25000000, while the sum is 54.

The spelling of 55055552525280 in words is "fifty-five trillion, fifty-five billion, five hundred fifty-two million, five hundred twenty-five thousand, two hundred eighty".