55280505025305 has 48 divisors (see below), whose sum is σ = 111742906204800. Its totient is φ = 25271088004512.

The previous prime is 55280505025303. The next prime is 55280505025331. The reversal of 55280505025305 is 50352050508255.

55280505025305 is a `hidden beast` number, since 5 + 528 + 0 + 50 + 50 + 25 + 3 + 0 + 5 = 666.

It is not a de Polignac number, because 55280505025305 - 2¹ = 55280505025303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (55280505025303) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1790736267 + ... + 1790767136.

It is an arithmetic number, because the mean of its divisors is an integer number (2327977212600).

Almost surely, 2^{55280505025305} is an apocalyptic number.

It is an amenable number.

55280505025305 is an abundant number, since it is smaller than the sum of its proper divisors (56462401179495).

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

55280505025305 is a wasteful number, since it uses less digits than its factorization.

55280505025305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3581503435 (or 3581503418 counting only the distinct ones).

The product of its (nonzero) digits is 1500000, while the sum is 45.

The spelling of 55280505025305 in words is "fifty-five trillion, two hundred eighty billion, five hundred five million, twenty-five thousand, three hundred five".