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25133 = 41613
BaseRepresentation
bin110001000101101
31021110212
412020231
51301013
6312205
7133163
oct61055
937425
1025133
1117979
1212665
13b594
149233
1576a8
hex622d

25133 has 4 divisors (see below), whose sum is σ = 25788. Its totient is φ = 24480.

The previous prime is 25127. The next prime is 25147. The reversal of 25133 is 33152.

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

It can be written as a sum of positive squares in 2 ways, for example, as 484 + 24649 = 22^2 + 157^2 .

It is a cyclic number.

It is not a de Polignac number, because 25133 - 24 = 25117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266 + ... + 347.

It is an arithmetic number, because the mean of its divisors is an integer number (6447).

225133 is an apocalyptic number.

It is an amenable number.

25133 is a deficient number, since it is larger than the sum of its proper divisors (655).

25133 is an equidigital number, since it uses as much as digits as its factorization.

25133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654.

The product of its digits is 90, while the sum is 14.

The square root of 25133 is about 158.5339080449. The cubic root of 25133 is about 29.2919382823.

Adding to 25133 its reverse (33152), we get a palindrome (58285).

The spelling of 25133 in words is "twenty-five thousand, one hundred thirty-three".

Divisors: 1 41 613 25133