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12425 = 52771
BaseRepresentation
bin11000010001001
3122001012
43002021
5344200
6133305
751140
oct30211
918035
1012425
119376
127235
13586a
144757
153a35
hex3089

12425 has 12 divisors (see below), whose sum is σ = 17856. Its totient is φ = 8400.

The previous prime is 12421. The next prime is 12433. The reversal of 12425 is 52421.

12425 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12425 - 22 = 12421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140 + ... + 210.

It is an arithmetic number, because the mean of its divisors is an integer number (1488).

212425 is an apocalyptic number.

It is an amenable number.

12425 is a deficient number, since it is larger than the sum of its proper divisors (5431).

12425 is an equidigital number, since it uses as much as digits as its factorization.

12425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 83 counting only the distinct ones).

The product of its digits is 80, while the sum is 14.

The square root of 12425 is about 111.4674840480. The cubic root of 12425 is about 23.1614351373.

Adding to 12425 its reverse (52421), we get a palindrome (64846).

The spelling of 12425 in words is "twelve thousand, four hundred twenty-five".

Divisors: 1 5 7 25 35 71 175 355 497 1775 2485 12425