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5027805581 is a prime number
BaseRepresentation
bin1001010111010111…
…00011100110001101
3110222101200222122112
410223223203212031
540244104234311
62150523153405
7235410433211
oct45353434615
913871628575
105027805581
112150079827
12b83975865
13621845ab6
14359a5c941
151e65ea28b
hex12bae398d

5027805581 has 2 divisors, whose sum is σ = 5027805582. Its totient is φ = 5027805580.

The previous prime is 5027805529. The next prime is 5027805637. The reversal of 5027805581 is 1855087205.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5022556900 + 5248681 = 70870^2 + 2291^2 .

It is a cyclic number.

It is not a de Polignac number, because 5027805581 - 214 = 5027789197 is a prime.

It is a super-2 number, since 2×50278055812 = 50557657920669495122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5027805481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2513902790 + 2513902791.

It is an arithmetic number, because the mean of its divisors is an integer number (2513902791).

Almost surely, 25027805581 is an apocalyptic number.

It is an amenable number.

5027805581 is a deficient number, since it is larger than the sum of its proper divisors (1).

5027805581 is an equidigital number, since it uses as much as digits as its factorization.

5027805581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112000, while the sum is 41.

The square root of 5027805581 is about 70907.0206749656. The cubic root of 5027805581 is about 1713.1398805495.

The spelling of 5027805581 in words is "five billion, twenty-seven million, eight hundred five thousand, five hundred eighty-one".