55568338979 has 16 divisors (see below), whose sum is σ = 57746696832. Its totient is φ = 53433027648.

The previous prime is 55568338967. The next prime is 55568338993. The reversal of 55568338979 is 97983386555.

It is a cyclic number.

It is not a de Polignac number, because 55568338979 - 2¹² = 55568334883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55568338909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1700852 + ... + 1733214.

It is an arithmetic number, because the mean of its divisors is an integer number (3609168552).

Almost surely, 2^55568338979 is an apocalyptic number.

55568338979 is a deficient number, since it is larger than the sum of its proper divisors (2178357853).

55568338979 is a wasteful number, since it uses less digits than its factorization.

55568338979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33026.

The product of its digits is 244944000, while the sum is 68.

The spelling of 55568338979 in words is "fifty-five billion, five hundred sixty-eight million, three hundred thirty-eight thousand, nine hundred seventy-nine".