55005279760 has 20 divisors (see below), whose sum is σ = 127887275628. Its totient is φ = 22002111872.

The previous prime is 55005279569. The next prime is 55005279761. The reversal of 55005279760 is 6797250055.

It can be written as a sum of positive squares in 2 ways, for example, as 19769484816 + 35235794944 = 140604^2 + 187712^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 55005279760.

It is not an unprimeable number, because it can be changed into a prime (55005279761) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 343782919 + ... + 343783078.

Almost surely, 2^55005279760 is an apocalyptic number.

It is an amenable number.

55005279760 is an abundant number, since it is smaller than the sum of its proper divisors (72881995868).

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

55005279760 is a wasteful number, since it uses less digits than its factorization.

55005279760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687566010 (or 687566004 counting only the distinct ones).

The product of its (nonzero) digits is 661500, while the sum is 46.

The spelling of 55005279760 in words is "fifty-five billion, five million, two hundred seventy-nine thousand, seven hundred sixty".