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55060122517721 = 197927822194299
BaseRepresentation
bin11001000010011101011110…
…00010110100000011011001
321012221200210121101202000122
430201032233002310003121
524204101112331031341
6313034134320043025
714411651110226426
oct1441165702640331
9235850717352018
1055060122517721
11165a8959824022
12621302b763475
1324951bb7402c9
14d84cd1c16d4d
1565739073594b
hex3213af0b40d9

55060122517721 has 4 divisors (see below), whose sum is σ = 55087944714000. Its totient is φ = 55032300321444.

The previous prime is 55060122517709. The next prime is 55060122517759. The reversal of 55060122517721 is 12771522106055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55060122517721 - 26 = 55060122517657 is a prime.

It is a super-2 number, since 2×550601225177212 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55060112517721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13911095171 + ... + 13911099128.

It is an arithmetic number, because the mean of its divisors is an integer number (13771986178500).

Almost surely, 255060122517721 is an apocalyptic number.

It is an amenable number.

55060122517721 is a deficient number, since it is larger than the sum of its proper divisors (27822196279).

55060122517721 is a wasteful number, since it uses less digits than its factorization.

55060122517721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27822196278.

The product of its (nonzero) digits is 294000, while the sum is 44.

The spelling of 55060122517721 in words is "fifty-five trillion, sixty billion, one hundred twenty-two million, five hundred seventeen thousand, seven hundred twenty-one".

Divisors: 1 1979 27822194299 55060122517721