55610550566 has 4 divisors (see below), whose sum is σ = 83415825852. Its totient is φ = 27805275282.

The previous prime is 55610550547. The next prime is 55610550581. The reversal of 55610550566 is 66505501655.

55610550566 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 is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13902637640 + ... + 13902637643.

It is an arithmetic number, because the mean of its divisors is an integer number (20853956463).

Almost surely, 2^55610550566 is an apocalyptic number.

55610550566 is a deficient number, since it is larger than the sum of its proper divisors (27805275286).

55610550566 is a wasteful number, since it uses less digits than its factorization.

55610550566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27805275285.

The product of its (nonzero) digits is 675000, while the sum is 44.

The spelling of 55610550566 in words is "fifty-five billion, six hundred ten million, five hundred fifty thousand, five hundred sixty-six".