20054440530 has 96 divisors (see below), whose sum is σ = 55236168000. Its totient is φ = 5034047616.

The previous prime is 20054440513. The next prime is 20054440543. The reversal of 20054440530 is 3504445002.

20054440530 is a `hidden beast` number, since 200 + 54 + 4 + 405 + 3 + 0 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20054440494 and 20054440503.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 231121 + ... + 305819.

It is an arithmetic number, because the mean of its divisors is an integer number (575376750).

Almost surely, 2^20054440530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20054440530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27618084000).

20054440530 is an abundant number, since it is smaller than the sum of its proper divisors (35181727470).

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

20054440530 is a wasteful number, since it uses less digits than its factorization.

20054440530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74888 (or 74885 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

Adding to 20054440530 its reverse (3504445002), we get a palindrome (23558885532).

The spelling of 20054440530 in words is "twenty billion, fifty-four million, four hundred forty thousand, five hundred thirty".