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6540555550055 = 53171594325811
BaseRepresentation
bin101111100101101011101…
…1111010111110101100111
3212011021022120011200001012
41133023113133113311213
51324130024210100210
621524404552252435
71243353030610022
oct137132737276547
925137276150035
106540555550055
1120a191a10696a
1289772a9a111b
13385a05694867
141887c92b61b9
15b5205240305
hex5f2d77d7d67

6540555550055 has 16 divisors (see below), whose sum is σ = 8215960025088. Its totient is φ = 4992336804000.

The previous prime is 6540555550027. The next prime is 6540555550103. The reversal of 6540555550055 is 5500555550456.

It is not a de Polignac number, because 6540555550055 - 28 = 6540555549799 is a prime.

It is a super-2 number, since 2×65405555500552 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6540555549985 and 6540555550012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297151901 + ... + 297173910.

It is an arithmetic number, because the mean of its divisors is an integer number (513497501568).

Almost surely, 26540555550055 is an apocalyptic number.

6540555550055 is a deficient number, since it is larger than the sum of its proper divisors (1675404475033).

6540555550055 is a wasteful number, since it uses less digits than its factorization.

6540555550055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594325918.

The product of its (nonzero) digits is 9375000, while the sum is 50.

The spelling of 6540555550055 in words is "six trillion, five hundred forty billion, five hundred fifty-five million, five hundred fifty thousand, fifty-five".

Divisors: 1 5 31 71 155 355 2201 11005 594325811 2971629055 18424100141 42197132581 92120500705 210985662905 1308111110011 6540555550055