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12550061 is a prime number
BaseRepresentation
bin101111110111…
…111110101101
3212121121110002
4233313332231
511203100221
61124554045
7211450046
oct57677655
925547402
1012550061
1170a2057
124252925
1327a5494
1419498cd
15117d80b
hexbf7fad

12550061 has 2 divisors, whose sum is σ = 12550062. Its totient is φ = 12550060.

The previous prime is 12550049. The next prime is 12550073. The reversal of 12550061 is 16005521.

It is a balanced prime because it is at equal distance from previous prime (12550049) and next prime (12550073).

It can be written as a sum of positive squares in only one way, i.e., 8008900 + 4541161 = 2830^2 + 2131^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12550061 is a prime.

It is a super-2 number, since 2×125500612 = 315008062207442, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12550001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6275030 + 6275031.

It is an arithmetic number, because the mean of its divisors is an integer number (6275031).

Almost surely, 212550061 is an apocalyptic number.

It is an amenable number.

12550061 is a deficient number, since it is larger than the sum of its proper divisors (1).

12550061 is an equidigital number, since it uses as much as digits as its factorization.

12550061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 12550061 is about 3542.6065262741. The cubic root of 12550061 is about 232.3888457769.

Adding to 12550061 its reverse (16005521), we get a palindrome (28555582).

The spelling of 12550061 in words is "twelve million, five hundred fifty thousand, sixty-one".