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13625 = 53109
BaseRepresentation
bin11010100111001
3200200122
43110321
5414000
6143025
754503
oct32471
920618
1013625
11a267
127a75
136281
144d73
154085
hex3539

13625 has 8 divisors (see below), whose sum is σ = 17160. Its totient is φ = 10800.

The previous prime is 13619. The next prime is 13627. The reversal of 13625 is 52631.

It can be divided in two parts, 136 and 25, that added together give a palindrome (161).

13625 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 169 + 13456 = 13^2 + 116^2 .

It is not a de Polignac number, because 13625 - 210 = 12601 is a prime.

13625 is strictly pandigital in base 6.

It is not an unprimeable number, because it can be changed into a prime (13627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71 + ... + 179.

It is an arithmetic number, because the mean of its divisors is an integer number (2145).

213625 is an apocalyptic number.

It is an amenable number.

13625 is a deficient number, since it is larger than the sum of its proper divisors (3535).

13625 is an equidigital number, since it uses as much as digits as its factorization.

13625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 114 counting only the distinct ones).

The product of its digits is 180, while the sum is 17.

The square root of 13625 is about 116.7261752993. The cubic root of 13625 is about 23.8842809052.

The spelling of 13625 in words is "thirteen thousand, six hundred twenty-five".

Divisors: 1 5 25 109 125 545 2725 13625