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52105040125 = 53478868943
BaseRepresentation
bin110000100001101100…
…111101000011111101
311222111021211021210221
4300201230331003331
51323202342241000
635534155501341
73523132350655
oct604154750375
9158437737727
1052105040125
1120108a33936
12a121a57851
134bb4c039b8
14274412d365
15154e5a561a
hexc21b3d0fd

52105040125 has 16 divisors (see below), whose sum is σ = 66410652672. Its totient is φ = 40797133200.

The previous prime is 52105040123. The next prime is 52105040233. The reversal of 52105040125 is 52104050125.

It is not a de Polignac number, because 52105040125 - 21 = 52105040123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52105040125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52105040123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4428597 + ... + 4440346.

It is an arithmetic number, because the mean of its divisors is an integer number (4150665792).

Almost surely, 252105040125 is an apocalyptic number.

It is an amenable number.

52105040125 is a deficient number, since it is larger than the sum of its proper divisors (14305612547).

52105040125 is an equidigital number, since it uses as much as digits as its factorization.

52105040125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8869005 (or 8868995 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The spelling of 52105040125 in words is "fifty-two billion, one hundred five million, forty thousand, one hundred twenty-five".

Divisors: 1 5 25 47 125 235 1175 5875 8868943 44344715 221723575 416840321 1108617875 2084201605 10421008025 52105040125