55569111938 has 54 divisors (see below), whose sum is σ = 91223274627. Its totient is φ = 25383096360.

The previous prime is 55569111929. The next prime is 55569111973. The reversal of 55569111938 is 83911196555.

It can be written as a sum of positive squares in only one way, i.e., 27784555969 + 27784555969 = 166687^2 + 166687^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=166687.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55569111938.

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 26 ways as a sum of consecutive naturals, for example, 196357145 + ... + 196357427.

Almost surely, 2^55569111938 is an apocalyptic number.

55569111938 is a deficient number, since it is larger than the sum of its proper divisors (35654162689).

55569111938 is an equidigital number, since it uses as much as digits as its factorization.

55569111938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668 (or 335 counting only the distinct ones).

The product of its digits is 1458000, while the sum is 53.

The spelling of 55569111938 in words is "fifty-five billion, five hundred sixty-nine million, one hundred eleven thousand, nine hundred thirty-eight".