55050660565 has 4 divisors (see below), whose sum is σ = 66060792684. Its totient is φ = 44040528448.

The previous prime is 55050660557. The next prime is 55050660583. The reversal of 55050660565 is 56506605055.

55050660565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8149395076 + 46901265489 = 90274^2 + 216567^2 .

It is a cyclic number.

It is not a de Polignac number, because 55050660565 - 2³ = 55050660557 is a prime.

It is a super-2 number, since 2×55050660565² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

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, 5505066052 + ... + 5505066061.

It is an arithmetic number, because the mean of its divisors is an integer number (16515198171).

Almost surely, 2^55050660565 is an apocalyptic number.

It is an amenable number.

55050660565 is a deficient number, since it is larger than the sum of its proper divisors (11010132119).

55050660565 is a wasteful number, since it uses less digits than its factorization.

55050660565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11010132118.

The product of its (nonzero) digits is 675000, while the sum is 43.

The spelling of 55050660565 in words is "fifty-five billion, fifty million, six hundred sixty thousand, five hundred sixty-five".