24428825 has 12 divisors (see below), whose sum is σ = 31031868. Its totient is φ = 19065600.

The previous prime is 24428801. The next prime is 24428827. The reversal of 24428825 is 52882442.

It can be written as a sum of positive squares in 6 ways, for example, as 1032256 + 23396569 = 1016^2 + 4837^2 .

It is not a de Polignac number, because 24428825 - 2¹⁶ = 24363289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (24428827) 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 in 11 ways as a sum of consecutive naturals, for example, 10892 + ... + 12941.

It is an arithmetic number, because the mean of its divisors is an integer number (2585989).

Almost surely, 2^24428825 is an apocalyptic number.

24428825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

24428825 is a deficient number, since it is larger than the sum of its proper divisors (6603043).

24428825 is a wasteful number, since it uses less digits than its factorization.

24428825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23884 (or 23879 counting only the distinct ones).

The product of its digits is 40960, while the sum is 35.

The square root of 24428825 is about 4942.5524782242. The cubic root of 24428825 is about 290.1577619611.

The spelling of 24428825 in words is "twenty-four million, four hundred twenty-eight thousand, eight hundred twenty-five".