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50511115105 = 5111725953861
BaseRepresentation
bin101111000010101100…
…100111001101100001
311211101012120111201221
4233002230213031201
51311421321140410
635112100255041
73435466252153
oct570254471541
9154335514657
1050511115105
111a470231430
1299580a1481
1349bc9170b9
14263257aad3
1514a96a64da
hexbc2b27361

50511115105 has 48 divisors (see below), whose sum is σ = 71433938880. Its totient is φ = 33987814400.

The previous prime is 50511115073. The next prime is 50511115121. The reversal of 50511115105 is 50151111505.

50511115105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 50511115105 - 25 = 50511115073 is a prime.

It is a super-2 number, since 2×505111151052 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 50511115105.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 910875 + ... + 964735.

It is an arithmetic number, because the mean of its divisors is an integer number (1488207060).

Almost surely, 250511115105 is an apocalyptic number.

50511115105 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

50511115105 is a deficient number, since it is larger than the sum of its proper divisors (20922823775).

50511115105 is a wasteful number, since it uses less digits than its factorization.

50511115105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53970 (or 53953 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 25.

The spelling of 50511115105 in words is "fifty billion, five hundred eleven million, one hundred fifteen thousand, one hundred five".

Divisors: 1 5 11 17 55 59 85 187 289 295 649 935 1003 1445 3179 3245 5015 11033 15895 17051 53861 55165 85255 187561 269305 592471 915637 937805 2962355 3177799 4578185 10072007 15565829 15888995 34955789 50360035 54022583 77829145 171224119 174778945 270112915 594248413 856120595 918383911 2971242065 4591919555 10102223021 50511115105