55605555605606 has 4 divisors (see below), whose sum is σ = 83408333408412. Its totient is φ = 27802777802802.

The previous prime is 55605555605569. The next prime is 55605555605647. The reversal of 55605555605606 is 60650655550655.

It is a happy number.

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

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, 13901388901400 + ... + 13901388901403.

It is an arithmetic number, because the mean of its divisors is an integer number (20852083352103).

Almost surely, 2^{55605555605606} is an apocalyptic number.

55605555605606 is a deficient number, since it is larger than the sum of its proper divisors (27802777802806).

55605555605606 is a wasteful number, since it uses less digits than its factorization.

55605555605606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27802777802805.

The product of its (nonzero) digits is 101250000, while the sum is 59.

The spelling of 55605555605606 in words is "fifty-five trillion, six hundred five billion, five hundred fifty-five million, six hundred five thousand, six hundred six".