19600056 has 160 divisors (see below), whose sum is σ = 65340000. Its totient is φ = 5370624.

The previous prime is 19600043. The next prime is 19600057. The reversal of 19600056 is 65000691.

19600056 is a `hidden beast` number, since 1 + 9 + 600 + 0 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19600057) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 131470 + ... + 131618.

It is an arithmetic number, because the mean of its divisors is an integer number (408375).

Almost surely, 2^19600056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19600056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32670000).

19600056 is an abundant number, since it is smaller than the sum of its proper divisors (45739944).

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

19600056 is a wasteful number, since it uses less digits than its factorization.

19600056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 19600056 is about 4427.1950487865. The cubic root of 19600056 is about 269.6202067582.

The spelling of 19600056 in words is "nineteen million, six hundred thousand, fifty-six".