25023445 has 16 divisors (see below), whose sum is σ = 30578688. Its totient is φ = 19656000.

The previous prime is 25023443. The next prime is 25023469. The reversal of 25023445 is 54432052.

It is not a de Polignac number, because 25023445 - 2¹ = 25023443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25023443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99570 + ... + 99820.

It is an arithmetic number, because the mean of its divisors is an integer number (1911168).

Almost surely, 2^25023445 is an apocalyptic number.

It is an amenable number.

25023445 is a deficient number, since it is larger than the sum of its proper divisors (5555243).

25023445 is a wasteful number, since it uses less digits than its factorization.

25023445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 25023445 is about 5002.3439505896. The cubic root of 25023445 is about 292.4931500575.

Adding to 25023445 its reverse (54432052), we get a palindrome (79455497).

The spelling of 25023445 in words is "twenty-five million, twenty-three thousand, four hundred forty-five".