20051296 has 96 divisors (see below), whose sum is σ = 45722880. Its totient is φ = 8601600.

The previous prime is 20051293. The next prime is 20051303. The reversal of 20051296 is 69215002.

It is a self number, because there is not a number n which added to its sum of digits gives 20051296.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20051293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 489036 + ... + 489076.

It is an arithmetic number, because the mean of its divisors is an integer number (476280).

Almost surely, 2^20051296 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 20051296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22861440).

20051296 is an abundant number, since it is smaller than the sum of its proper divisors (25671584).

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

20051296 is a wasteful number, since it uses less digits than its factorization.

20051296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 20051296 is about 4477.8673495315. The cubic root of 20051296 is about 271.6736281520.

Adding to 20051296 its reverse (69215002), we get a palindrome (89266298).

The spelling of 20051296 in words is "twenty million, fifty-one thousand, two hundred ninety-six".