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53250575785 = 5115318267779
BaseRepresentation
bin110001100101111110…
…110100110110101001
312002110010100112022121
4301211332310312221
51333024121411120
640244000351241
73563412266041
oct614576646651
9162403315277
1053250575785
112064661a820
12a3a1615521
135038338a54
142812322721
1515b9e335aa
hexc65fb4da9

53250575785 has 16 divisors (see below), whose sum is σ = 71025128640. Its totient is φ = 37996978240.

The previous prime is 53250575783. The next prime is 53250575801. The reversal of 53250575785 is 58757505235.

It is not a de Polignac number, because 53250575785 - 21 = 53250575783 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53250575783) 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, 9130975 + ... + 9136804.

It is an arithmetic number, because the mean of its divisors is an integer number (4439070540).

Almost surely, 253250575785 is an apocalyptic number.

53250575785 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53250575785 is a deficient number, since it is larger than the sum of its proper divisors (17774552855).

53250575785 is a wasteful number, since it uses less digits than its factorization.

53250575785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18267848.

The product of its (nonzero) digits is 7350000, while the sum is 52.

The spelling of 53250575785 in words is "fifty-three billion, two hundred fifty million, five hundred seventy-five thousand, seven hundred eighty-five".

Divisors: 1 5 11 53 55 265 583 2915 18267779 91338895 200945569 968192287 1004727845 4840961435 10650115157 53250575785