55680505220 has 12 divisors (see below), whose sum is σ = 116929061004. Its totient is φ = 22272202080.

The previous prime is 55680505201. The next prime is 55680505289. The reversal of 55680505220 is 2250508655.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7417687876 + 48262817344 = 86126^2 + 219688^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1392012611 + ... + 1392012650.

It is an arithmetic number, because the mean of its divisors is an integer number (9744088417).

Almost surely, 2^55680505220 is an apocalyptic number.

It is an amenable number.

55680505220 is an abundant number, since it is smaller than the sum of its proper divisors (61248555784).

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

55680505220 is a wasteful number, since it uses less digits than its factorization.

55680505220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2784025270 (or 2784025268 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 38.

The spelling of 55680505220 in words is "fifty-five billion, six hundred eighty million, five hundred five thousand, two hundred twenty".