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56555100841 is a prime number
BaseRepresentation
bin110100101010111100…
…100101101010101001
312101222102101210111111
4310222330211222221
51411311101211331
641551524030321
74041326265631
oct645274455251
9171872353444
1056555100841
1121a91975368
12ab642323a1
135443b43915
142a471596c1
1517100cbdb1
hexd2af25aa9

56555100841 has 2 divisors, whose sum is σ = 56555100842. Its totient is φ = 56555100840.

The previous prime is 56555100827. The next prime is 56555100859. The reversal of 56555100841 is 14800155565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55170963225 + 1384137616 = 234885^2 + 37204^2 .

It is a cyclic number.

It is not a de Polignac number, because 56555100841 - 27 = 56555100713 is a prime.

It is a super-2 number, since 2×565551008412 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56555100794 and 56555100803.

It is not a weakly prime, because it can be changed into another prime (56555100871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28277550420 + 28277550421.

It is an arithmetic number, because the mean of its divisors is an integer number (28277550421).

Almost surely, 256555100841 is an apocalyptic number.

It is an amenable number.

56555100841 is a deficient number, since it is larger than the sum of its proper divisors (1).

56555100841 is an equidigital number, since it uses as much as digits as its factorization.

56555100841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120000, while the sum is 40.

The spelling of 56555100841 in words is "fifty-six billion, five hundred fifty-five million, one hundred thousand, eight hundred forty-one".