25522245 has 24 divisors (see below), whose sum is σ = 50558976. Its totient is φ = 11667168.

The previous prime is 25522229. The next prime is 25522271. The reversal of 25522245 is 54222552.

It is not a de Polignac number, because 25522245 - 2⁴ = 25522229 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40197 + ... + 40826.

It is an arithmetic number, because the mean of its divisors is an integer number (2106624).

Almost surely, 2^25522245 is an apocalyptic number.

It is an amenable number.

25522245 is a deficient number, since it is larger than the sum of its proper divisors (25036731).

25522245 is a wasteful number, since it uses less digits than its factorization.

25522245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81041 (or 81038 counting only the distinct ones).

The product of its digits is 8000, while the sum is 27.

The square root of 25522245 is about 5051.9545722423. The cubic root of 25522245 is about 294.4238299189.

Adding to 25522245 its reverse (54222552), we get a palindrome (79744797).

It can be divided in two parts, 255 and 22245, that added together give a square (22500 = 150²).

The spelling of 25522245 in words is "twenty-five million, five hundred twenty-two thousand, two hundred forty-five".