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252525030005 = 564178790961
BaseRepresentation
bin1110101100101110101…
…0100010101001110101
3220010210220101200010002
43223023222202221311
513114132401430010
6312001451441045
724146543224163
oct3531352425165
9803726350102
10252525030005
1198105883706
1240b36156185
131aa752430a1
14c317cda233
15687e83b1a5
hex3acbaa2a75

252525030005 has 8 divisors (see below), whose sum is σ = 303502785624. Its totient is φ = 201704857600.

The previous prime is 252525029989. The next prime is 252525030073. The reversal of 252525030005 is 500030525252.

It can be written as a sum of positive squares in 4 ways, for example, as 40930549969 + 211594480036 = 202313^2 + 459994^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 252525030005 - 24 = 252525029989 is a prime.

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 252525030005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39392276 + ... + 39398685.

It is an arithmetic number, because the mean of its divisors is an integer number (37937848203).

Almost surely, 2252525030005 is an apocalyptic number.

It is an amenable number.

252525030005 is a deficient number, since it is larger than the sum of its proper divisors (50977755619).

252525030005 is an equidigital number, since it uses as much as digits as its factorization.

252525030005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78791607.

The product of its (nonzero) digits is 15000, while the sum is 29.

Adding to 252525030005 its reverse (500030525252), we get a palindrome (752555555257).

The spelling of 252525030005 in words is "two hundred fifty-two billion, five hundred twenty-five million, thirty thousand, five".

Divisors: 1 5 641 3205 78790961 393954805 50505006001 252525030005