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51250455441 = 3217334970297
BaseRepresentation
bin101111101110110000…
…111110001110010001
311220021201202220000100
4233232300332032101
51314430104033231
635313311043013
73463014453303
oct575660761621
9156251686010
1051250455441
111a80a6007a9
129b23810469
134aa9b4b9a3
1426a2835973
1514ee54a1e6
hexbeec3e391

51250455441 has 12 divisors (see below), whose sum is σ = 78383049732. Its totient is φ = 32157148416.

The previous prime is 51250455419. The next prime is 51250455463. The reversal of 51250455441 is 14455405215.

51250455441 is a `hidden beast` number, since 5 + 12 + 50 + 4 + 554 + 41 = 666.

It is an interprime number because it is at equal distance from previous prime (51250455419) and next prime (51250455463).

It can be written as a sum of positive squares in 2 ways, for example, as 33086154816 + 18164300625 = 181896^2 + 134775^2 .

It is not a de Polignac number, because 51250455441 - 213 = 51250447249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51250455396 and 51250455405.

It is not an unprimeable number, because it can be changed into a prime (51250555441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167484996 + ... + 167485301.

It is an arithmetic number, because the mean of its divisors is an integer number (6531920811).

Almost surely, 251250455441 is an apocalyptic number.

51250455441 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

51250455441 is a deficient number, since it is larger than the sum of its proper divisors (27132594291).

51250455441 is a wasteful number, since it uses less digits than its factorization.

51250455441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334970320 (or 334970317 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

The spelling of 51250455441 in words is "fifty-one billion, two hundred fifty million, four hundred fifty-five thousand, four hundred forty-one".

Divisors: 1 3 9 17 51 153 334970297 1004910891 3014732673 5694495049 17083485147 51250455441