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52554240000 = 21232542281
BaseRepresentation
bin110000111100011110…
…100001000000000000
312000122121002000012100
4300330132201000000
51330112341140000
640050523430400
73540225445413
oct607436410000
9160577060170
1052554240000
11203195533a9
12a228385400
134c56cb0442
142787a5db7a
151578c36a00
hexc3c7a1000

52554240000 has 390 divisors, whose sum is σ = 189778474886. Its totient is φ = 14008320000.

The previous prime is 52554239981. The next prime is 52554240001. The reversal of 52554240000 is 4245525.

52554240000 is a `hidden beast` number, since 5 + 255 + 4 + 2 + 400 + 0 + 0 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 18011787264 + 34542452736 = 134208^2 + 185856^2 .

It is not an unprimeable number, because it can be changed into a prime (52554240001) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 23038860 + ... + 23041140.

Almost surely, 252554240000 is an apocalyptic number.

52554240000 is a gapful number since it is divisible by the number (50) 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 52554240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94889237443).

52554240000 is an abundant number, since it is smaller than the sum of its proper divisors (137224234886).

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

52554240000 is an equidigital number, since it uses as much as digits as its factorization.

52554240000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2331 (or 2291 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

Adding to 52554240000 its reverse (4245525), we get a palindrome (52558485525).

The spelling of 52554240000 in words is "fifty-two billion, five hundred fifty-four million, two hundred forty thousand".