55747275668 has 12 divisors (see below), whose sum is σ = 111494551392. Its totient is φ = 23891689560.

The previous prime is 55747275601. The next prime is 55747275707. The reversal of 55747275668 is 86657274755.

55747275668 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 55747275668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 995487038 + ... + 995487093.

It is an arithmetic number, because the mean of its divisors is an integer number (9291212616).

Almost surely, 2^55747275668 is an apocalyptic number.

It is an amenable number.

55747275668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55747275668 is a wasteful number, since it uses less digits than its factorization.

55747275668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990974142 (or 1990974140 counting only the distinct ones).

The product of its digits is 98784000, while the sum is 62.

The spelling of 55747275668 in words is "fifty-five billion, seven hundred forty-seven million, two hundred seventy-five thousand, six hundred sixty-eight".