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8525 = 521131
BaseRepresentation
bin10000101001101
3102200202
42011031
5233100
6103245
733566
oct20515
912622
108525
116450
124b25
133b5a
14316d
1527d5
hex214d

8525 has 12 divisors (see below), whose sum is σ = 11904. Its totient is φ = 6000.

The previous prime is 8521. The next prime is 8527. The reversal of 8525 is 5258.

8525 = 52 + 62 + ... + 292.

8525 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8525 - 22 = 8521 is a prime.

It is an alternating number because its digits alternate between even and odd.

8525 is strictly pandigital in base 6.

It is a plaindrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 8497 and 8506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 260 + ... + 290.

It is an arithmetic number, because the mean of its divisors is an integer number (992).

28525 is an apocalyptic number.

It is an amenable number.

8525 is a deficient number, since it is larger than the sum of its proper divisors (3379).

8525 is a wasteful number, since it uses less digits than its factorization.

8525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52 (or 47 counting only the distinct ones).

The product of its digits is 400, while the sum is 20.

The square root of 8525 is about 92.3309265631. The cubic root of 8525 is about 20.4282640390.

The spelling of 8525 in words is "eight thousand, five hundred twenty-five".

Divisors: 1 5 11 25 31 55 155 275 341 775 1705 8525