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57885065461 is a prime number
BaseRepresentation
bin110101111010001110…
…000000000011110101
312112102002221222222101
4311322032000003311
51422022034043321
642331513502101
74116305636536
oct657216000365
9175362858871
1057885065461
1122604679483
12b275711931
1355c6540732
142b31a3a68d
15178bc3a791
hexd7a3800f5

57885065461 has 2 divisors, whose sum is σ = 57885065462. Its totient is φ = 57885065460.

The previous prime is 57885065449. The next prime is 57885065503. The reversal of 57885065461 is 16456058875.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48624660100 + 9260405361 = 220510^2 + 96231^2 .

It is a cyclic number.

It is not a de Polignac number, because 57885065461 - 211 = 57885063413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57885065261) 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 as a sum of consecutive naturals, namely, 28942532730 + 28942532731.

It is an arithmetic number, because the mean of its divisors is an integer number (28942532731).

Almost surely, 257885065461 is an apocalyptic number.

It is an amenable number.

57885065461 is a deficient number, since it is larger than the sum of its proper divisors (1).

57885065461 is an equidigital number, since it uses as much as digits as its factorization.

57885065461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064000, while the sum is 55.

The spelling of 57885065461 in words is "fifty-seven billion, eight hundred eighty-five million, sixty-five thousand, four hundred sixty-one".