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BaseRepresentation
bin1001010100111111100001…
…1101000110001010100101
31100022111012001210220121012
42111033320131012022211
52321014302330000144
633451354133432005
72105663365512011
oct225177035061245
940274161726535
1010256255312549
1132a4720820164
12119789319b605
1359521216598c
1427659660d541
1512bbc6ec7e9e
hex953f87462a5

10256255312549 has 2 divisors, whose sum is σ = 10256255312550. Its totient is φ = 10256255312548.

The previous prime is 10256255312519. The next prime is 10256255312551. The reversal of 10256255312549 is 94521355265201.

10256255312549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7605405684100 + 2650849628449 = 2757790^2 + 1628143^2 .

It is a cyclic number.

It is not a de Polignac number, because 10256255312549 - 216 = 10256255247013 is a prime.

It is a Sophie Germain prime.

Together with 10256255312551, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10256255312497 and 10256255312506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10256255312519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5128127656274 + 5128127656275.

It is an arithmetic number, because the mean of its divisors is an integer number (5128127656275).

Almost surely, 210256255312549 is an apocalyptic number.

It is an amenable number.

10256255312549 is a deficient number, since it is larger than the sum of its proper divisors (1).

10256255312549 is an equidigital number, since it uses as much as digits as its factorization.

10256255312549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240000, while the sum is 50.

The spelling of 10256255312549 in words is "ten trillion, two hundred fifty-six billion, two hundred fifty-five million, three hundred twelve thousand, five hundred forty-nine".