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52152305225 = 5211318460993
BaseRepresentation
bin110000100100100001…
…010000011001001001
311222121120202121100012
4300210201100121021
51323301442231400
635543004521305
73524245165046
oct604441203111
9158546677305
1052152305225
11201326868a9
12a135850235
134bc1942307
14274a5141cd
1515537ded35
hexc24850649

52152305225 has 12 divisors (see below), whose sum is σ = 65241152796. Its totient is φ = 41352622080.

The previous prime is 52152305197. The next prime is 52152305263. The reversal of 52152305225 is 52250325125.

It can be written as a sum of positive squares in 6 ways, for example, as 3465441424 + 48686863801 = 58868^2 + 220651^2 .

It is not a de Polignac number, because 52152305225 - 218 = 52152043081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52152305191 and 52152305200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9227672 + ... + 9233321.

It is an arithmetic number, because the mean of its divisors is an integer number (5436762733).

Almost surely, 252152305225 is an apocalyptic number.

It is an amenable number.

52152305225 is a deficient number, since it is larger than the sum of its proper divisors (13088847571).

52152305225 is a wasteful number, since it uses less digits than its factorization.

52152305225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18461116 (or 18461111 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 52152305225 in words is "fifty-two billion, one hundred fifty-two million, three hundred five thousand, two hundred twenty-five".

Divisors: 1 5 25 113 565 2825 18460993 92304965 461524825 2086092209 10430461045 52152305225