25225445 has 24 divisors (see below), whose sum is σ = 37072800. Its totient is φ = 16384032.

The previous prime is 25225441. The next prime is 25225463. The reversal of 25225445 is 54452252.

It is not a de Polignac number, because 25225445 - 2² = 25225441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25225441) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1946 + ... + 7364.

It is an arithmetic number, because the mean of its divisors is an integer number (1544700).

Almost surely, 2^25225445 is an apocalyptic number.

It is an amenable number.

25225445 is a deficient number, since it is larger than the sum of its proper divisors (11847355).

25225445 is a wasteful number, since it uses less digits than its factorization.

25225445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5457 (or 5450 counting only the distinct ones).

The product of its digits is 16000, while the sum is 29.

The square root of 25225445 is about 5022.4939024353. The cubic root of 25225445 is about 293.2780851814.

Adding to 25225445 its reverse (54452252), we get a palindrome (79677697).

The spelling of 25225445 in words is "twenty-five million, two hundred twenty-five thousand, four hundred forty-five".