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8252825 = 52726737
BaseRepresentation
bin11111011110110110011001
3120112021202012
4133132312121
54103042300
6452515305
7130101500
oct37366631
916467665
108252825
114727519
12291bb35
13192c539
14114b837
15ad0435
hex7ded99

8252825 has 18 divisors (see below), whose sum is σ = 11906046. Its totient is φ = 5658240.

The previous prime is 8252809. The next prime is 8252879. The reversal of 8252825 is 5282528.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 529984 + 7722841 = 728^2 + 2779^2 .

It is not a de Polignac number, because 8252825 - 24 = 8252809 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8252791 and 8252800.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2144 + ... + 4593.

It is an arithmetic number, because the mean of its divisors is an integer number (661447).

Almost surely, 28252825 is an apocalyptic number.

It is an amenable number.

8252825 is a deficient number, since it is larger than the sum of its proper divisors (3653221).

8252825 is a wasteful number, since it uses less digits than its factorization.

8252825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6761 (or 6749 counting only the distinct ones).

The product of its digits is 12800, while the sum is 32.

The square root of 8252825 is about 2872.7730505559. The cubic root of 8252825 is about 202.0850620416.

Adding to 8252825 its product of digits (12800), we get a square (8265625 = 28752).

The spelling of 8252825 in words is "eight million, two hundred fifty-two thousand, eight hundred twenty-five".

Divisors: 1 5 7 25 35 49 175 245 1225 6737 33685 47159 168425 235795 330113 1178975 1650565 8252825