25500245 has 8 divisors (see below), whose sum is σ = 30821280. Its totient is φ = 20252880.

The previous prime is 25500239. The next prime is 25500253. The reversal of 25500245 is 54200552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25500245 - 2⁴ = 25500229 is a prime.

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 25500245.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 17651 + ... + 19040.

It is an arithmetic number, because the mean of its divisors is an integer number (3852660).

Almost surely, 2^25500245 is an apocalyptic number.

It is an amenable number.

25500245 is a deficient number, since it is larger than the sum of its proper divisors (5321035).

25500245 is a wasteful number, since it uses less digits than its factorization.

25500245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36835.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 25500245 is about 5049.7767277376. The cubic root of 25500245 is about 294.3392084931.

Adding to 25500245 its reverse (54200552), we get a palindrome (79700797).

The spelling of 25500245 in words is "twenty-five million, five hundred thousand, two hundred forty-five".