20550534024 has 64 divisors (see below), whose sum is σ = 52432761600. Its totient is φ = 6710147136.

The previous prime is 20550533989. The next prime is 20550534041. The reversal of 20550534024 is 42043505502.

It is a junction number, because it is equal to n+sod(n) for n = 20550533982 and 20550534000.

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 15 ways as a sum of consecutive naturals, for example, 375087 + ... + 426369.

It is an arithmetic number, because the mean of its divisors is an integer number (819261900).

Almost surely, 2^20550534024 is an apocalyptic number.

20550534024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20550534024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26216380800).

20550534024 is an abundant number, since it is smaller than the sum of its proper divisors (31882227576).

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

20550534024 is a wasteful number, since it uses less digits than its factorization.

20550534024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51634 (or 51630 counting only the distinct ones).

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

The spelling of 20550534024 in words is "twenty billion, five hundred fifty million, five hundred thirty-four thousand, twenty-four".