55280305550 has 12 divisors (see below), whose sum is σ = 102821368416. Its totient is φ = 22112122200.

The previous prime is 55280305477. The next prime is 55280305567. The reversal of 55280305550 is 5550308255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 552803006 + ... + 552803105.

It is an arithmetic number, because the mean of its divisors is an integer number (8568447368).

Almost surely, 2^55280305550 is an apocalyptic number.

55280305550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55280305550 is a deficient number, since it is larger than the sum of its proper divisors (47541062866).

55280305550 is a wasteful number, since it uses less digits than its factorization.

55280305550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105606123 (or 1105606118 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 38.

The spelling of 55280305550 in words is "fifty-five billion, two hundred eighty million, three hundred five thousand, five hundred fifty".