25620245 has 16 divisors (see below), whose sum is σ = 35218560. Its totient is φ = 17527104.

The previous prime is 25620239. The next prime is 25620263. The reversal of 25620245 is 54202652.

It is not a de Polignac number, because 25620245 - 2¹⁶ = 25554709 is a prime.

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, 28574 + ... + 29456.

It is an arithmetic number, because the mean of its divisors is an integer number (2201160).

Almost surely, 2^25620245 is an apocalyptic number.

It is an amenable number.

25620245 is a deficient number, since it is larger than the sum of its proper divisors (9598315).

25620245 is an equidigital number, since it uses as much as digits as its factorization.

25620245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 25620245 is about 5061.6444956160. The cubic root of 25620245 is about 294.8001902721.

Adding to 25620245 its reverse (54202652), we get a palindrome (79822897).

The spelling of 25620245 in words is "twenty-five million, six hundred twenty thousand, two hundred forty-five".