23305425 has 96 divisors (see below), whose sum is σ = 47246976. Its totient is φ = 9984000.

The previous prime is 23305421. The next prime is 23305483. The reversal of 23305425 is 52450332.

It is not a de Polignac number, because 23305425 - 2² = 23305421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23305395 and 23305404.

It is not an unprimeable number, because it can be changed into a prime (23305421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 439699 + ... + 439751.

It is an arithmetic number, because the mean of its divisors is an integer number (492156).

Almost surely, 2^23305425 is an apocalyptic number.

23305425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23305425 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

23305425 is a wasteful number, since it uses less digits than its factorization.

23305425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 23305425 is about 4827.5692641328. The cubic root of 23305425 is about 285.6399899083.

Adding to 23305425 its reverse (52450332), we get a palindrome (75755757).

The spelling of 23305425 in words is "twenty-three million, three hundred five thousand, four hundred twenty-five".