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12508680551 is a prime number
BaseRepresentation
bin10111010011001001…
…10101000101100111
31012021202021210212212
423221210311011213
5201104210234201
65425120234035
7621656013263
oct135144650547
935252253785
1012508680551
115339907924
12251116b91b
131244668a33
148693d30a3
154d3250abb
hex2e9935167

12508680551 has 2 divisors, whose sum is σ = 12508680552. Its totient is φ = 12508680550.

The previous prime is 12508680497. The next prime is 12508680553. The reversal of 12508680551 is 15508680521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12508680551 - 226 = 12441571687 is a prime.

Together with 12508680553, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12508680499 and 12508680508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12508680553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6254340275 + 6254340276.

It is an arithmetic number, because the mean of its divisors is an integer number (6254340276).

Almost surely, 212508680551 is an apocalyptic number.

12508680551 is a deficient number, since it is larger than the sum of its proper divisors (1).

12508680551 is an equidigital number, since it uses as much as digits as its factorization.

12508680551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96000, while the sum is 41.

The spelling of 12508680551 in words is "twelve billion, five hundred eight million, six hundred eighty thousand, five hundred fifty-one".