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51232555053 = 3317235918289
BaseRepresentation
bin101111101101101100…
…101100000000101101
311220020111002110022000
4233231230230000231
51314411013230203
635311431242513
73462406350501
oct575554540055
9156214073260
1051232555053
111a800494999
129b19819439
134aa6222144
1426a02d6301
1514ecbb14a3
hexbedb2c02d

51232555053 has 48 divisors (see below), whose sum is σ = 80856432000. Its totient is φ = 32054621184.

The previous prime is 51232555051. The next prime is 51232555091. The reversal of 51232555053 is 35055523215.

51232555053 is a `hidden beast` number, since 5 + 123 + 25 + 5 + 505 + 3 = 666.

It is not a de Polignac number, because 51232555053 - 21 = 51232555051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51232554999 and 51232555017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51232555051) 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 47 ways as a sum of consecutive naturals, for example, 2792133 + ... + 2810421.

It is an arithmetic number, because the mean of its divisors is an integer number (1684509000).

Almost surely, 251232555053 is an apocalyptic number.

It is an amenable number.

51232555053 is a deficient number, since it is larger than the sum of its proper divisors (29623876947).

51232555053 is a wasteful number, since it uses less digits than its factorization.

51232555053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18691 (or 18668 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 36.

The spelling of 51232555053 in words is "fifty-one billion, two hundred thirty-two million, five hundred fifty-five thousand, fifty-three".

Divisors: 1 3 9 17 27 51 153 289 359 459 867 1077 2601 3231 6103 7803 9693 18289 18309 54867 54927 103751 164601 164781 310913 311253 493803 932739 933759 2798217 2801277 5285521 6565751 8394651 15856563 19697253 47569689 59091759 111617767 142709067 177275277 334853301 1004559903 1897502039 3013679709 5692506117 17077518351 51232555053