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8516525 = 52340661
BaseRepresentation
bin100000011111…
…001110101101
3121000200110212
4200133032231
54140012100
6502312205
7132250343
oct40371655
917020425
108516525
114897656
122a28665
1319c2584
1411b9993
15b33635
hex81f3ad

8516525 has 6 divisors (see below), whose sum is σ = 10560522. Its totient is φ = 6813200.

The previous prime is 8516513. The next prime is 8516527. The reversal of 8516525 is 5256158.

It can be written as a sum of positive squares in 3 ways, for example, as 1408969 + 7107556 = 1187^2 + 2666^2 .

It is not a de Polignac number, because 8516525 - 218 = 8254381 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8516491 and 8516500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8516527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 170306 + ... + 170355.

It is an arithmetic number, because the mean of its divisors is an integer number (1760087).

Almost surely, 28516525 is an apocalyptic number.

It is an amenable number.

8516525 is a deficient number, since it is larger than the sum of its proper divisors (2043997).

8516525 is a wasteful number, since it uses less digits than its factorization.

8516525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340671 (or 340666 counting only the distinct ones).

The product of its digits is 12000, while the sum is 32.

The square root of 8516525 is about 2918.3085854652. The cubic root of 8516525 is about 204.2149231113.

The spelling of 8516525 in words is "eight million, five hundred sixteen thousand, five hundred twenty-five".

Divisors: 1 5 25 340661 1703305 8516525