56109993 has 8 divisors (see below), whose sum is σ = 74848608. Its totient is φ = 37389024.

The previous prime is 56109967. The next prime is 56110001. The reversal of 56109993 is 39990165.

56109993 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 not a de Polignac number, because 56109993 - 2⁶ = 56109929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56109913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8005 + ... + 13277.

It is an arithmetic number, because the mean of its divisors is an integer number (9356076).

Almost surely, 2^56109993 is an apocalyptic number.

It is an amenable number.

56109993 is a deficient number, since it is larger than the sum of its proper divisors (18738615).

56109993 is a wasteful number, since it uses less digits than its factorization.

56109993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8823.

The product of its (nonzero) digits is 65610, while the sum is 42.

The square root of 56109993 is about 7490.6603847725. The cubic root of 56109993 is about 382.8365596862.

The spelling of 56109993 in words is "fifty-six million, one hundred nine thousand, nine hundred ninety-three".