25812306 has 48 divisors (see below), whose sum is σ = 61536384. Its totient is φ = 7769952.

The previous prime is 25812299. The next prime is 25812331. The reversal of 25812306 is 60321852.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25812306.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 9825 + ... + 12171.

It is an arithmetic number, because the mean of its divisors is an integer number (1282008).

Almost surely, 2^25812306 is an apocalyptic number.

25812306 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 25812306, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30768192).

25812306 is an abundant number, since it is smaller than the sum of its proper divisors (35724078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25812306 is a wasteful number, since it uses less digits than its factorization.

25812306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2415 (or 2412 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 25812306 is about 5080.5812659577. The cubic root of 25812306 is about 295.5350092081.

The spelling of 25812306 in words is "twenty-five million, eight hundred twelve thousand, three hundred six".