24251 has 2 divisors, whose sum is σ = 24252.
Its totient is φ = 24250.
The previous prime is 24247. The next prime is 24281. The reversal of 24251 is 15242.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 24251 - 22 = 24247 is a prime.
It is a super-2 number, since 2×242512 = 1176222002, which contains 22 as substring.
It is a Chen prime.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 24251.
It is not a weakly prime, because it can be changed into another prime (24281) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12125 + 12126.
It is an arithmetic number, because the mean of its divisors is an integer number (12126).
224251 is an apocalyptic number.
24251 is a deficient number, since it is larger than the sum of its proper divisors (1).
24251 is an equidigital number, since it uses as much as digits as its factorization.
24251 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 80, while the sum is 14.
The square root of 24251 is about 155.7273257974.
The cubic root of 24251 is about 28.9451997215.
Adding to 24251 its reverse (15242), we get a palindrome (39493).
Subtracting from 24251 its reverse (15242), we obtain a palindrome (9009).
The spelling of 24251 in words is "twenty-four thousand, two hundred fifty-one".