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565253257 is a prime number
BaseRepresentation
bin100001101100010…
…001010010001001
31110101121211200211
4201230101102021
52124201101012
6132031201121
720002400452
oct4154212211
91411554624
10565253257
11270086158
121393761a1
13901511aa
1455100129
15349576a7
hex21b11489

565253257 has 2 divisors, whose sum is σ = 565253258. Its totient is φ = 565253256.

The previous prime is 565253237. The next prime is 565253261. The reversal of 565253257 is 752352565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 394062201 + 171191056 = 19851^2 + 13084^2 .

It is a cyclic number.

It is not a de Polignac number, because 565253257 - 227 = 431035529 is a prime.

It is a super-2 number, since 2×5652532572 = 639022489098216098, which contains 22 as substring.

It is equal to p29602939 and since 565253257 and 29602939 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (565253237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282626628 + 282626629.

It is an arithmetic number, because the mean of its divisors is an integer number (282626629).

Almost surely, 2565253257 is an apocalyptic number.

It is an amenable number.

565253257 is a deficient number, since it is larger than the sum of its proper divisors (1).

565253257 is an equidigital number, since it uses as much as digits as its factorization.

565253257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 315000, while the sum is 40.

The square root of 565253257 is about 23775.0553521963. The cubic root of 565253257 is about 826.8264436187.

The spelling of 565253257 in words is "five hundred sixty-five million, two hundred fifty-three thousand, two hundred fifty-seven".