Search a number
-
+
25091 = 112281
BaseRepresentation
bin110001000000011
31021102022
412020003
51300331
6312055
7133103
oct61003
937368
1025091
1117940
121262b
13b561
149203
15767b
hex6203

25091 has 4 divisors (see below), whose sum is σ = 27384. Its totient is φ = 22800.

The previous prime is 25087. The next prime is 25097. The reversal of 25091 is 19052.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25091 - 22 = 25087 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 25091.

It is not an unprimeable number, because it can be changed into a prime (25097) 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 3 ways as a sum of consecutive naturals, for example, 1130 + ... + 1151.

It is an arithmetic number, because the mean of its divisors is an integer number (6846).

225091 is an apocalyptic number.

25091 is a deficient number, since it is larger than the sum of its proper divisors (2293).

25091 is a wasteful number, since it uses less digits than its factorization.

25091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2292.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 25091 is about 158.4013888828. The cubic root of 25091 is about 29.2756125041.

The spelling of 25091 in words is "twenty-five thousand, ninety-one".

Divisors: 1 11 2281 25091