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51060050055 = 3357191282889
BaseRepresentation
bin101111100011011010…
…101000100010000111
311212210110111021221000
4233203122220202013
51314032333100210
635242350024343
73455213156460
oct574332504207
9155713437830
1051060050055
111a722081383
129a8baa80b3
134a79573891
14268542dd67
1514dc988ac0
hexbe36a8887

51060050055 has 64 divisors (see below), whose sum is σ = 104284569600. Its totient is φ = 23219447040.

The previous prime is 51060050053. The next prime is 51060050057. The reversal of 51060050055 is 55005006015.

51060050055 is a `hidden beast` number, since 5 + 1 + 0 + 600 + 5 + 0 + 0 + 55 = 666.

51060050055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51060050053) and next prime (51060050057).

It is not a de Polignac number, because 51060050055 - 21 = 51060050053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51060050053) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39051 + ... + 321939.

It is an arithmetic number, because the mean of its divisors is an integer number (1629446400).

Almost surely, 251060050055 is an apocalyptic number.

51060050055 is an abundant number, since it is smaller than the sum of its proper divisors (53224519545).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51060050055 is a wasteful number, since it uses less digits than its factorization.

51060050055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283101 (or 283095 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The spelling of 51060050055 in words is "fifty-one billion, sixty million, fifty thousand, fifty-five".

Divisors: 1 3 5 7 9 15 21 27 35 45 63 105 135 189 191 315 573 945 955 1337 1719 2865 4011 5157 6685 8595 12033 20055 25785 36099 60165 180495 282889 848667 1414445 1980223 2546001 4243335 5940669 7638003 9901115 12730005 17822007 29703345 38190015 53466021 54031799 89110035 162095397 267330105 270158995 378222593 486286191 810476985 1134667779 1458858573 1891112965 2431430955 3404003337 5673338895 7294292865 10212010011 17020016685 51060050055