55655616577 has 8 divisors (see below), whose sum is σ = 61710550272. Its totient is φ = 49766571600.

The previous prime is 55655616559. The next prime is 55655616581. The reversal of 55655616577 is 77561655655.

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

It is a cyclic number.

It is not a de Polignac number, because 55655616577 - 2²³ = 55647227969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55655616557) 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, 41471473 + ... + 41472814.

It is an arithmetic number, because the mean of its divisors is an integer number (7713818784).

Almost surely, 2^55655616577 is an apocalyptic number.

It is an amenable number.

55655616577 is a deficient number, since it is larger than the sum of its proper divisors (6054933695).

55655616577 is a wasteful number, since it uses less digits than its factorization.

55655616577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82944359.

The product of its digits is 33075000, while the sum is 58.

The spelling of 55655616577 in words is "fifty-five billion, six hundred fifty-five million, six hundred sixteen thousand, five hundred seventy-seven".