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12554230049 is a prime number
BaseRepresentation
bin10111011000100101…
…00101100100100001
31012101220222222001022
423230102211210201
5201202340330144
65433424415225
7623051123534
oct135422454441
935356888038
1012554230049
115362598939
122524477515
131250c264ba
1487148ca1b
154d724bcee
hex2ec4a5921

12554230049 has 2 divisors, whose sum is σ = 12554230050. Its totient is φ = 12554230048.

The previous prime is 12554230021. The next prime is 12554230061. The reversal of 12554230049 is 94003245521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6603187600 + 5951042449 = 81260^2 + 77143^2 .

It is an emirp because it is prime and its reverse (94003245521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12554230049 - 228 = 12285794593 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12554230009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6277115024 + 6277115025.

It is an arithmetic number, because the mean of its divisors is an integer number (6277115025).

Almost surely, 212554230049 is an apocalyptic number.

It is an amenable number.

12554230049 is a deficient number, since it is larger than the sum of its proper divisors (1).

12554230049 is an equidigital number, since it uses as much as digits as its factorization.

12554230049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 12554230049 in words is "twelve billion, five hundred fifty-four million, two hundred thirty thousand, forty-nine".