24425 has 6 divisors (see below), whose sum is σ = 30318. Its totient is φ = 19520.

The previous prime is 24421. The next prime is 24439. The reversal of 24425 is 52442.

It can be written as a sum of positive squares in 3 ways, for example, as 5929 + 18496 = 77^2 + 136^2 .

It is not a de Polignac number, because 24425 - 2² = 24421 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 24425.

It is not an unprimeable number, because it can be changed into a prime (24421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 464 + ... + 513.

It is an arithmetic number, because the mean of its divisors is an integer number (5053).

2²⁴⁴²⁵ is an apocalyptic number.

24425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

24425 is a deficient number, since it is larger than the sum of its proper divisors (5893).

24425 is an equidigital number, since it uses as much as digits as its factorization.

24425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987 (or 982 counting only the distinct ones).

The product of its digits is 320, while the sum is 17.

The square root of 24425 is about 156.2849960809. The cubic root of 24425 is about 29.0142617129.

Adding to 24425 its sum of digits (17), we get a palindrome (24442).

Adding to 24425 its reverse (52442), we get a palindrome (76867).

The spelling of 24425 in words is "twenty-four thousand, four hundred twenty-five".