25230645 has 24 divisors (see below), whose sum is σ = 47709792. Its totient is φ = 12232800.

The previous prime is 25230643. The next prime is 25230649. The reversal of 25230645 is 54603252.

It is not a de Polignac number, because 25230645 - 2¹ = 25230643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25230643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24991 + ... + 25980.

It is an arithmetic number, because the mean of its divisors is an integer number (1987908).

Almost surely, 2^25230645 is an apocalyptic number.

It is an amenable number.

25230645 is a deficient number, since it is larger than the sum of its proper divisors (22479147).

25230645 is a wasteful number, since it uses less digits than its factorization.

25230645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50993 (or 50990 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 25230645 is about 5023.0115468711. The cubic root of 25230645 is about 293.2982360154.

Adding to 25230645 its reverse (54603252), we get a palindrome (79833897).

The spelling of 25230645 in words is "twenty-five million, two hundred thirty thousand, six hundred forty-five".