55573647320 has 32 divisors (see below), whose sum is σ = 126753599520. Its totient is φ = 21924944640.

The previous prime is 55573647289. The next prime is 55573647359. The reversal of 55573647320 is 2374637555.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9513116 + ... + 9518955.

It is an arithmetic number, because the mean of its divisors is an integer number (3961049985).

Almost surely, 2^55573647320 is an apocalyptic number.

It is an amenable number.

55573647320 is an abundant number, since it is smaller than the sum of its proper divisors (71179952200).

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

55573647320 is a wasteful number, since it uses less digits than its factorization.

55573647320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19032155 (or 19032151 counting only the distinct ones).

The product of its (nonzero) digits is 2646000, while the sum is 47.

The spelling of 55573647320 in words is "fifty-five billion, five hundred seventy-three million, six hundred forty-seven thousand, three hundred twenty".