20033254056 has 128 divisors (see below), whose sum is σ = 53047872000. Its totient is φ = 6294177792.

The previous prime is 20033253979. The next prime is 20033254057. The reversal of 20033254056 is 65045233002.

It is a super-2 number, since 2×20033254056² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20033254057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24762580 + ... + 24763388.

It is an arithmetic number, because the mean of its divisors is an integer number (414436500).

Almost surely, 2^20033254056 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 20033254056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26523936000).

20033254056 is an abundant number, since it is smaller than the sum of its proper divisors (33014617944).

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

20033254056 is a wasteful number, since it uses less digits than its factorization.

20033254056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651 (or 1647 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 20033254056 its reverse (65045233002), we get a palindrome (85078487058).

The spelling of 20033254056 in words is "twenty billion, thirty-three million, two hundred fifty-four thousand, fifty-six".