109205056 has 56 divisors (see below), whose sum is σ = 225161856. Its totient is φ = 52508160.

The previous prime is 109205051. The next prime is 109205071. The reversal of 109205056 is 650502901.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (109205051) 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, 253161 + ... + 253591.

Almost surely, 2^109205056 is an apocalyptic number.

109205056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109205056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112580928).

109205056 is an abundant number, since it is smaller than the sum of its proper divisors (115956800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109205056 is a wasteful number, since it uses less digits than its factorization.

109205056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587 (or 577 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 109205056 is about 10450.1222959351. The cubic root of 109205056 is about 477.9849787825.

Adding to 109205056 its reverse (650502901), we get a palindrome (759707957).

The spelling of 109205056 in words is "one hundred nine million, two hundred five thousand, fifty-six".