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53112516256 = 2531295318131
BaseRepresentation
bin110001011101110000…
…001010111010100000
312002002111120101020201
4301131300022322200
51332233301010011
640222145314544
73560114640112
oct613560127240
9162074511221
1053112516256
11205856a3638
12a363335a54
13501585aa17
1427dbc653b2
1515acc61cc1
hexc5dc0aea0

53112516256 has 48 divisors (see below), whose sum is σ = 107980846848. Its totient is φ = 25689484800.

The previous prime is 53112516217. The next prime is 53112516257. The reversal of 53112516256 is 65261521135.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (53112516257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2920311 + ... + 2938441.

It is an arithmetic number, because the mean of its divisors is an integer number (2249600976).

Almost surely, 253112516256 is an apocalyptic number.

It is an amenable number.

53112516256 is an abundant number, since it is smaller than the sum of its proper divisors (54868330592).

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

53112516256 is a wasteful number, since it uses less digits than its factorization.

53112516256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21125 (or 21117 counting only the distinct ones).

The product of its digits is 54000, while the sum is 37.

The spelling of 53112516256 in words is "fifty-three billion, one hundred twelve million, five hundred sixteen thousand, two hundred fifty-six".

Divisors: 1 2 4 8 16 31 32 62 124 248 496 992 2953 5906 11812 18131 23624 36262 47248 72524 91543 94496 145048 183086 290096 366172 562061 580192 732344 1124122 1464688 2248244 2929376 4496488 8992976 17985952 53540843 107081686 214163372 428326744 856653488 1659766133 1713306976 3319532266 6639064532 13278129064 26556258128 53112516256