56109166 has 16 divisors (see below), whose sum is σ = 88742160. Its totient is φ = 26533440.

The previous prime is 56109149. The next prime is 56109169. The reversal of 56109166 is 66190165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56109169) 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, 37146 + ... + 38626.

It is an arithmetic number, because the mean of its divisors is an integer number (5546385).

Almost surely, 2^56109166 is an apocalyptic number.

56109166 is a deficient number, since it is larger than the sum of its proper divisors (32632994).

56109166 is a wasteful number, since it uses less digits than its factorization.

56109166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2499.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 56109166 is about 7490.6051824936. The cubic root of 56109166 is about 382.8346788127.

The spelling of 56109166 in words is "fifty-six million, one hundred nine thousand, one hundred sixty-six".