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51101575055 = 531329687581
BaseRepresentation
bin101111100101111001…
…000010011110001111
311212220100121222111222
4233211321002132033
51314124000400210
635250432033555
73456226135556
oct574571023617
9155810558458
1051101575055
111a743563763
129aa19928bb
134a8505259b
14268ab5cd9d
1514e143c655
hexbe5e4278f

51101575055 has 8 divisors (see below), whose sum is σ = 63300015744. Its totient is φ = 39562509600.

The previous prime is 51101575027. The next prime is 51101575081. The reversal of 51101575055 is 55057510115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51101575055 - 230 = 50027833231 is a prime.

It is a super-2 number, since 2×511015750552 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164843636 + ... + 164843945.

It is an arithmetic number, because the mean of its divisors is an integer number (7912501968).

Almost surely, 251101575055 is an apocalyptic number.

51101575055 is a deficient number, since it is larger than the sum of its proper divisors (12198440689).

51101575055 is a wasteful number, since it uses less digits than its factorization.

51101575055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329687617.

The product of its (nonzero) digits is 21875, while the sum is 35.

The spelling of 51101575055 in words is "fifty-one billion, one hundred one million, five hundred seventy-five thousand, fifty-five".

Divisors: 1 5 31 155 329687581 1648437905 10220315011 51101575055