25305245 has 16 divisors (see below), whose sum is σ = 36531840. Its totient is φ = 16438464.

The previous prime is 25305233. The next prime is 25305251. The reversal of 25305245 is 54250352.

It is not a de Polignac number, because 25305245 - 2⁸ = 25304989 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18362 + ... + 19691.

It is an arithmetic number, because the mean of its divisors is an integer number (2283240).

Almost surely, 2^25305245 is an apocalyptic number.

It is an amenable number.

25305245 is a deficient number, since it is larger than the sum of its proper divisors (11226595).

25305245 is a wasteful number, since it uses less digits than its factorization.

25305245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38084.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 25305245 is about 5030.4318900071. The cubic root of 25305245 is about 293.5870186889.

Adding to 25305245 its reverse (54250352), we get a palindrome (79555597).

The spelling of 25305245 in words is "twenty-five million, three hundred five thousand, two hundred forty-five".