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52752755565 = 3251172283457
BaseRepresentation
bin110001001000010011…
…110010101101101101
312001011102121122100200
4301020103302231231
51331014201134230
640122334344113
73545156011116
oct611023625555
9161142548320
1052752755565
1120410612054
12a28295b039
134c89167b83
1427a617720d
15158b39b160
hexc484f2b6d

52752755565 has 12 divisors (see below), whose sum is σ = 91438109724. Its totient is φ = 28134802944.

The previous prime is 52752755563. The next prime is 52752755569. The reversal of 52752755565 is 56555725725.

52752755565 is a `hidden beast` number, since 5 + 2 + 7 + 5 + 2 + 75 + 5 + 565 = 666.

52752755565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 40393764324 + 12358991241 = 200982^2 + 111171^2 .

It is not a de Polignac number, because 52752755565 - 21 = 52752755563 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52752755563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 586141684 + ... + 586141773.

It is an arithmetic number, because the mean of its divisors is an integer number (7619842477).

Almost surely, 252752755565 is an apocalyptic number.

It is an amenable number.

52752755565 is a deficient number, since it is larger than the sum of its proper divisors (38685354159).

52752755565 is a wasteful number, since it uses less digits than its factorization.

52752755565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172283468 (or 1172283465 counting only the distinct ones).

The product of its digits is 18375000, while the sum is 54.

The spelling of 52752755565 in words is "fifty-two billion, seven hundred fifty-two million, seven hundred fifty-five thousand, five hundred sixty-five".

Divisors: 1 3 5 9 15 45 1172283457 3516850371 5861417285 10550551113 17584251855 52752755565