20054512544 has 96 divisors (see below), whose sum is σ = 45409424256. Its totient is φ = 8629125120.

The previous prime is 20054512523. The next prime is 20054512549. The reversal of 20054512544 is 44521545002.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 20054512544.

It is not an unprimeable number, because it can be changed into a prime (20054512549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 772544 + ... + 798080.

It is an arithmetic number, because the mean of its divisors is an integer number (473014836).

Almost surely, 2^20054512544 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 20054512544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22704712128).

20054512544 is an abundant number, since it is smaller than the sum of its proper divisors (25354911712).

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

20054512544 is a wasteful number, since it uses less digits than its factorization.

20054512544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25678 (or 25670 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 32.

The spelling of 20054512544 in words is "twenty billion, fifty-four million, five hundred twelve thousand, five hundred forty-four".