55756625668 has 24 divisors (see below), whose sum is σ = 105100853760. Its totient is φ = 25806010560.

The previous prime is 55756625657. The next prime is 55756625671. The reversal of 55756625668 is 86652665755.

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, 9772153 + ... + 9777856.

It is an arithmetic number, because the mean of its divisors is an integer number (4379202240).

Almost surely, 2^55756625668 is an apocalyptic number.

It is an amenable number.

55756625668 is a deficient number, since it is larger than the sum of its proper divisors (49344228092).

55756625668 is a wasteful number, since it uses less digits than its factorization.

55756625668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19550067 (or 19550065 counting only the distinct ones).

The product of its digits is 90720000, while the sum is 61.

The spelling of 55756625668 in words is "fifty-five billion, seven hundred fifty-six million, six hundred twenty-five thousand, six hundred sixty-eight".