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52105245025 = 522084209801
BaseRepresentation
bin110000100001101101…
…101111000101100001
311222111022012200212211
4300201231233011201
51323202420320100
635534204122121
73523134163231
oct604155570541
9158438180784
1052105245025
1120109063879
12a121b36341
134bb4c76042
142744183cc1
15154e5e61ba
hexc21b6f161

52105245025 has 6 divisors (see below), whose sum is σ = 64610503862. Its totient is φ = 41684196000.

The previous prime is 52105245001. The next prime is 52105245037. The reversal of 52105245025 is 52054250125.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1106959441 + 50998285584 = 33271^2 + 225828^2 .

It is not a de Polignac number, because 52105245025 - 25 = 52105244993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1042104876 + ... + 1042104925.

Almost surely, 252105245025 is an apocalyptic number.

It is an amenable number.

52105245025 is a deficient number, since it is larger than the sum of its proper divisors (12505258837).

52105245025 is a wasteful number, since it uses less digits than its factorization.

52105245025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2084209811 (or 2084209806 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 31.

The spelling of 52105245025 in words is "fifty-two billion, one hundred five million, two hundred forty-five thousand, twenty-five".

Divisors: 1 5 25 2084209801 10421049005 52105245025