19852056 has 144 divisors (see below), whose sum is σ = 66423240. Its totient is φ = 5322240.

The previous prime is 19852009. The next prime is 19852067. The reversal of 19852056 is 65025891.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 19852056.

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 59811 + ... + 60141.

Almost surely, 2^19852056 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 19852056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33211620).

19852056 is an abundant number, since it is smaller than the sum of its proper divisors (46571184).

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

19852056 is a wasteful number, since it uses less digits than its factorization.

19852056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374 (or 360 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 19852056 is about 4455.5646106863. The cubic root of 19852056 is about 270.7708015213.

The spelling of 19852056 in words is "nineteen million, eight hundred fifty-two thousand, fifty-six".