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20522425502255 = 561170921393671
BaseRepresentation
bin1001010101010001111111…
…11000011100101000101111
32200122220222010012202201212
410222220333320130220233
510142214411412033010
6111351512213425035
74215460556355305
oct452507770345057
980586863182655
1020522425502255
1165a256a1a5276
12237547293b17b
13b5b344483a71
1450d40d944275
15258c7e647505
hex12aa3fe1ca2f

20522425502255 has 16 divisors (see below), whose sum is σ = 25030840477248. Its totient is φ = 16148658336000.

The previous prime is 20522425502251. The next prime is 20522425502347. The reversal of 20522425502255 is 55220552422502.

It is not a de Polignac number, because 20522425502255 - 22 = 20522425502251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20522425502251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51934070 + ... + 52327740.

It is an arithmetic number, because the mean of its divisors is an integer number (1564427529828).

Almost surely, 220522425502255 is an apocalyptic number.

20522425502255 is a deficient number, since it is larger than the sum of its proper divisors (4508414974993).

20522425502255 is a wasteful number, since it uses less digits than its factorization.

20522425502255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564658.

The product of its (nonzero) digits is 800000, while the sum is 41.

Adding to 20522425502255 its reverse (55220552422502), we get a palindrome (75742977924757).

The spelling of 20522425502255 in words is "twenty trillion, five hundred twenty-two billion, four hundred twenty-five million, five hundred two thousand, two hundred fifty-five".

Divisors: 1 5 61 305 170921 393671 854605 1968355 10426181 24013931 52130905 120069655 67286640991 336433204955 4104485100451 20522425502255