55610561605 has 8 divisors (see below), whose sum is σ = 66752872992. Its totient is φ = 44474983248.

The previous prime is 55610561603. The next prime is 55610561659. The reversal of 55610561605 is 50616501655.

55610561605 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 a cyclic number.

It is not a de Polignac number, because 55610561605 - 2¹ = 55610561603 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 (55610561603) 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, 1665067 + ... + 1698136.

It is an arithmetic number, because the mean of its divisors is an integer number (8344109124).

Almost surely, 2^55610561605 is an apocalyptic number.

It is an amenable number.

55610561605 is a deficient number, since it is larger than the sum of its proper divisors (11142311387).

55610561605 is a wasteful number, since it uses less digits than its factorization.

55610561605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3366515.

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 55610561605 in words is "fifty-five billion, six hundred ten million, five hundred sixty-one thousand, six hundred five".