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55501115061 = 371927321081
BaseRepresentation
bin110011101100000111…
…111100111010110101
312022020222010202211010
4303230013330322311
51402131241140221
641255153302433
74003240460040
oct635407747265
9168228122733
1055501115061
11215a0a29237
12a90b264a19
1353066840b2
142987197c57
15169c7d4c76
hexcec1fceb5

55501115061 has 24 divisors (see below), whose sum is σ = 89258631744. Its totient is φ = 30045712320.

The previous prime is 55501115029. The next prime is 55501115063. The reversal of 55501115061 is 16051110555.

It is not a de Polignac number, because 55501115061 - 25 = 55501115029 is a prime.

It is a super-2 number, since 2×555011150612 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55501115063) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3652960 + ... + 3668121.

It is an arithmetic number, because the mean of its divisors is an integer number (3719109656).

Almost surely, 255501115061 is an apocalyptic number.

It is an amenable number.

55501115061 is a deficient number, since it is larger than the sum of its proper divisors (33757516683).

55501115061 is a wasteful number, since it uses less digits than its factorization.

55501115061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7321129 (or 7321110 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 55501115061 in words is "fifty-five billion, five hundred one million, one hundred fifteen thousand, sixty-one".

Divisors: 1 3 7 19 21 57 133 361 399 1083 2527 7581 7321081 21963243 51247567 139100539 153742701 417301617 973703773 2642910241 2921111319 7928730723 18500371687 55501115061