20024543550 has 192 divisors, whose sum is σ = 55021835520. Its totient is φ = 4779264000.

The previous prime is 20024543549. The next prime is 20024543573. The reversal of 20024543550 is 5534542002.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 39340696 + ... + 39341204.

It is an arithmetic number, because the mean of its divisors is an integer number (286572060).

Almost surely, 2^20024543550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20024543550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27510917760).

20024543550 is an abundant number, since it is smaller than the sum of its proper divisors (34997291970).

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

20024543550 is a wasteful number, since it uses less digits than its factorization.

20024543550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859 (or 854 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

The spelling of 20024543550 in words is "twenty billion, twenty-four million, five hundred forty-three thousand, five hundred fifty".