56105605 has 8 divisors (see below), whose sum is σ = 67371552. Its totient is φ = 44854608.

The previous prime is 56105591. The next prime is 56105611. The reversal of 56105605 is 50650165.

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 56105605 - 2⁵ = 56105573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7722 + ... + 13108.

It is an arithmetic number, because the mean of its divisors is an integer number (8421444).

Almost surely, 2^56105605 is an apocalyptic number.

It is an amenable number.

56105605 is a deficient number, since it is larger than the sum of its proper divisors (11265947).

56105605 is a wasteful number, since it uses less digits than its factorization.

56105605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7475.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 56105605 is about 7490.3674809718. The cubic root of 56105605 is about 382.8265797015.

The spelling of 56105605 in words is "fifty-six million, one hundred five thousand, six hundred five".