Search a number
-
+
25085 = 529173
BaseRepresentation
bin110000111111101
31021102002
412013331
51300320
6312045
7133064
oct60775
937362
1025085
1117935
1212625
13b558
1491db
157675
hex61fd

25085 has 8 divisors (see below), whose sum is σ = 31320. Its totient is φ = 19264.

The previous prime is 25073. The next prime is 25087. The reversal of 25085 is 58052.

25085 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 7396 + 17689 = 86^2 + 133^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25085 - 210 = 24061 is a prime.

25085 is strictly pandigital in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25087) by changing a digit.

It is a Zeisel number, with parameters (6, -1).

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59 + ... + 231.

It is an arithmetic number, because the mean of its divisors is an integer number (3915).

225085 is an apocalyptic number.

It is an amenable number.

25085 is a deficient number, since it is larger than the sum of its proper divisors (6235).

25085 is a wasteful number, since it uses less digits than its factorization.

25085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207.

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

The square root of 25085 is about 158.3824485226. The cubic root of 25085 is about 29.2732787632.

The spelling of 25085 in words is "twenty-five thousand, eighty-five".

Divisors: 1 5 29 145 173 865 5017 25085