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51025234533 = 3721326700803
BaseRepresentation
bin101111100001010101…
…110100101001100101
311212201000222111000020
4233201111310221211
51313444430001113
635235103505353
73454311223500
oct574125645145
9155630874006
1051025234533
111a704461a19
129a802b8259
134a722a3a90
14268096a137
1514d98ad023
hexbe1574a65

51025234533 has 24 divisors (see below), whose sum is σ = 85228966368. Its totient is φ = 26914408416.

The previous prime is 51025234531. The next prime is 51025234549. The reversal of 51025234533 is 33543252015.

It is not a de Polignac number, because 51025234533 - 21 = 51025234531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51025234494 and 51025234503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51025234531) 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 in 23 ways as a sum of consecutive naturals, for example, 13348491 + ... + 13352312.

It is an arithmetic number, because the mean of its divisors is an integer number (3551206932).

Almost surely, 251025234533 is an apocalyptic number.

It is an amenable number.

51025234533 is a deficient number, since it is larger than the sum of its proper divisors (34203731835).

51025234533 is a wasteful number, since it uses less digits than its factorization.

51025234533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26700833 (or 26700826 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 33.

Adding to 51025234533 its reverse (33543252015), we get a palindrome (84568486548).

The spelling of 51025234533 in words is "fifty-one billion, twenty-five million, two hundred thirty-four thousand, five hundred thirty-three".

Divisors: 1 3 7 13 21 39 49 91 147 273 637 1911 26700803 80102409 186905621 347110439 560716863 1041331317 1308339347 2429773073 3925018041 7289319219 17008411511 51025234533