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12525 = 352167
BaseRepresentation
bin11000011101101
3122011220
43003231
5400100
6133553
751342
oct30355
918156
1012525
119457
1272b9
135916
1447c9
153aa0
hex30ed

12525 has 12 divisors (see below), whose sum is σ = 20832. Its totient is φ = 6640.

The previous prime is 12517. The next prime is 12527. The reversal of 12525 is 52521.

It can be divided in two parts, 125 and 25, that multiplied together give a 5-th power (3125 = 55).

It is not a de Polignac number, because 12525 - 23 = 12517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12527) 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, 9 + ... + 158.

It is an arithmetic number, because the mean of its divisors is an integer number (1736).

212525 is an apocalyptic number.

12525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12525 is a deficient number, since it is larger than the sum of its proper divisors (8307).

12525 is a wasteful number, since it uses less digits than its factorization.

12525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 175 counting only the distinct ones).

The product of its digits is 100, while the sum is 15.

The square root of 12525 is about 111.9151464280. The cubic root of 12525 is about 23.2234058276.

The spelling of 12525 in words is "twelve thousand, five hundred twenty-five".

Divisors: 1 3 5 15 25 75 167 501 835 2505 4175 12525