55280558305 has 32 divisors (see below), whose sum is σ = 79344705024. Its totient is φ = 36150782976.

The previous prime is 55280558257. The next prime is 55280558317. The reversal of 55280558305 is 50385508255.

It is not a de Polignac number, because 55280558305 - 2¹¹ = 55280556257 is a prime.

It is a Duffinian number.

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, 169399 + ... + 373171.

It is an arithmetic number, because the mean of its divisors is an integer number (2479522032).

Almost surely, 2^55280558305 is an apocalyptic number.

It is an amenable number.

55280558305 is a deficient number, since it is larger than the sum of its proper divisors (24064146719).

55280558305 is a wasteful number, since it uses less digits than its factorization.

55280558305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204145.

The product of its (nonzero) digits is 1200000, while the sum is 46.

The spelling of 55280558305 in words is "fifty-five billion, two hundred eighty million, five hundred fifty-eight thousand, three hundred five".