538556254560 has 288 divisors, whose sum is σ = 1973344306752. Its totient is φ = 133262868480.

The previous prime is 538556254531. The next prime is 538556254571. The reversal of 538556254560 is 65452655835.

538556254560 is a `hidden beast` number, since 5 + 3 + 8 + 5 + 5 + 625 + 4 + 5 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a junction number, because it is equal to n+sod(n) for n = 538556254497 and 538556254506.

It is a congruent number.

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, 1583152 + ... + 1893008.

It is an arithmetic number, because the mean of its divisors is an integer number (6851889954).

Almost surely, 2^538556254560 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 538556254560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (986672153376).

538556254560 is an abundant number, since it is smaller than the sum of its proper divisors (1434788052192).

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

538556254560 is a wasteful number, since it uses less digits than its factorization.

538556254560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309966 (or 309955 counting only the distinct ones).

The product of its (nonzero) digits is 21600000, while the sum is 54.

The spelling of 538556254560 in words is "five hundred thirty-eight billion, five hundred fifty-six million, two hundred fifty-four thousand, five hundred sixty".