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52819647625 = 53537972777
BaseRepresentation
bin110001001100010010…
…111101110010001001
312001100002111010000101
4301030102331302021
51331133312211000
640133124205401
73546630411523
oct611422756211
9161302433011
1052819647625
1120445350048
12a2a1239861
134c99c88b84
1427b0dcaa13
1515921b0e6a
hexc4c4bdc89

52819647625 has 16 divisors (see below), whose sum is σ = 67162681872. Its totient is φ = 41458435200.

The previous prime is 52819647619. The next prime is 52819647653. The reversal of 52819647625 is 52674691825.

It can be written as a sum of positive squares in 8 ways, for example, as 8909283321 + 43910364304 = 94389^2 + 209548^2 .

It is not a de Polignac number, because 52819647625 - 27 = 52819647497 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 15 ways as a sum of consecutive naturals, for example, 3979764 + ... + 3993013.

It is an arithmetic number, because the mean of its divisors is an integer number (4197667617).

Almost surely, 252819647625 is an apocalyptic number.

It is an amenable number.

52819647625 is a deficient number, since it is larger than the sum of its proper divisors (14343034247).

52819647625 is an equidigital number, since it uses as much as digits as its factorization.

52819647625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7972845 (or 7972835 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 55.

The spelling of 52819647625 in words is "fifty-two billion, eight hundred nineteen million, six hundred forty-seven thousand, six hundred twenty-five".

Divisors: 1 5 25 53 125 265 1325 6625 7972777 39863885 199319425 422557181 996597125 2112785905 10563929525 52819647625