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8125529 is a prime number
BaseRepresentation
bin11110111111110001011001
3120021211010112
4132333301121
54040004104
6450054105
7126031406
oct36776131
916254115
108125529
11464a915
12287a335
1318b6609
1411172ad
15aa786e
hex7bfc59

8125529 has 2 divisors, whose sum is σ = 8125530. Its totient is φ = 8125528.

The previous prime is 8125519. The next prime is 8125531. The reversal of 8125529 is 9255218.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6864400 + 1261129 = 2620^2 + 1123^2 .

It is a cyclic number.

It is not a de Polignac number, because 8125529 - 212 = 8121433 is a prime.

Together with 8125531, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8125495 and 8125504.

It is not a weakly prime, because it can be changed into another prime (8125519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4062764 + 4062765.

It is an arithmetic number, because the mean of its divisors is an integer number (4062765).

Almost surely, 28125529 is an apocalyptic number.

It is an amenable number.

8125529 is a deficient number, since it is larger than the sum of its proper divisors (1).

8125529 is an equidigital number, since it uses as much as digits as its factorization.

8125529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 32.

The square root of 8125529 is about 2850.5313539760. The cubic root of 8125529 is about 201.0406508377.

The spelling of 8125529 in words is "eight million, one hundred twenty-five thousand, five hundred twenty-nine".