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56027555757 = 32109137416881
BaseRepresentation
bin110100001011100000…
…001010011110101101
312100121122201201200200
4310023200022132231
51404221023241012
641423320544113
74022262236415
oct641340123655
9170548651620
1056027555757
1121841104998
12aa37622039
13538b766074
1429d7073645
1516cdb223dc
hexd0b80a7ad

56027555757 has 24 divisors (see below), whose sum is σ = 82267493880. Its totient is φ = 36738800640.

The previous prime is 56027555747. The next prime is 56027555761. The reversal of 56027555757 is 75755572065.

56027555757 is a `hidden beast` number, since 5 + 60 + 2 + 7 + 5 + 5 + 575 + 7 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 13645510596 + 42382045161 = 116814^2 + 205869^2 .

It is not a de Polignac number, because 56027555757 - 224 = 56010778541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56027555747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74044 + ... + 342837.

It is an arithmetic number, because the mean of its divisors is an integer number (3427812245).

Almost surely, 256027555757 is an apocalyptic number.

It is an amenable number.

56027555757 is a deficient number, since it is larger than the sum of its proper divisors (26239938123).

56027555757 is a wasteful number, since it uses less digits than its factorization.

56027555757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417133 (or 417130 counting only the distinct ones).

The product of its (nonzero) digits is 12862500, while the sum is 54.

The spelling of 56027555757 in words is "fifty-six billion, twenty-seven million, five hundred fifty-five thousand, seven hundred fifty-seven".

Divisors: 1 3 9 109 137 327 411 981 1233 14933 44799 134397 416881 1250643 3751929 45440029 57112697 136320087 171338091 408960261 514014273 6225283973 18675851919 56027555757