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53060489856 = 2734112961263
BaseRepresentation
bin110001011010101001…
…101101001010000000
312001221212200011110000
4301122221231022000
51332131441133411
640213050240000
73555613502463
oct613251551200
9161855604400
1053060489856
1120559299410
12a349a26000
135007b4317a
1427d4da12da
1515a83d6956
hexc5aa6d280

53060489856 has 640 divisors, whose sum is σ = 181812470400. Its totient is φ = 15211929600.

The previous prime is 53060489759. The next prime is 53060489857. The reversal of 53060489856 is 65898406035.

It is a happy number.

53060489856 is a `hidden beast` number, since 53 + 0 + 60 + 489 + 8 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (53060489857) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 201750781 + ... + 201751043.

It is an arithmetic number, because the mean of its divisors is an integer number (284081985).

Almost surely, 253060489856 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 53060489856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90906235200).

53060489856 is an abundant number, since it is smaller than the sum of its proper divisors (128751980544).

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

53060489856 is a wasteful number, since it uses less digits than its factorization.

53060489856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 53060489856 in words is "fifty-three billion, sixty million, four hundred eighty-nine thousand, eight hundred fifty-six".