55605656577 has 8 divisors (see below), whose sum is σ = 74402858464. Its totient is φ = 36939446208.

The previous prime is 55605656551. The next prime is 55605656581. The reversal of 55605656577 is 77565650655.

It is a happy number.

55605656577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55605656577 - 2¹⁵ = 55605623809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55605656537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32746888 + ... + 32748585.

It is an arithmetic number, because the mean of its divisors is an integer number (9300357308).

Almost surely, 2^55605656577 is an apocalyptic number.

It is an amenable number.

55605656577 is a deficient number, since it is larger than the sum of its proper divisors (18797201887).

55605656577 is a wasteful number, since it uses less digits than its factorization.

55605656577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65495759.

The product of its (nonzero) digits is 33075000, while the sum is 57.

The spelling of 55605656577 in words is "fifty-five billion, six hundred five million, six hundred fifty-six thousand, five hundred seventy-seven".