55383860605 has 4 divisors (see below), whose sum is σ = 66460632732. Its totient is φ = 44307088480.

The previous prime is 55383860603. The next prime is 55383860731. The reversal of 55383860605 is 50606838355.

It is a happy number.

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 10216559929 + 45167300676 = 101077^2 + 212526^2 .

It is not a de Polignac number, because 55383860605 - 2¹ = 55383860603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55383860603) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5538386056 + ... + 5538386065.

It is an arithmetic number, because the mean of its divisors is an integer number (16615158183).

Almost surely, 2^55383860605 is an apocalyptic number.

It is an amenable number.

55383860605 is a deficient number, since it is larger than the sum of its proper divisors (11076772127).

55383860605 is a wasteful number, since it uses less digits than its factorization.

55383860605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11076772126.

The product of its (nonzero) digits is 2592000, while the sum is 49.

The spelling of 55383860605 in words is "fifty-five billion, three hundred eighty-three million, eight hundred sixty thousand, six hundred five".