25530316 has 24 divisors (see below), whose sum is σ = 51518880. Its totient is φ = 10843392.

The previous prime is 25530313. The next prime is 25530343. The reversal of 25530316 is 61303552.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25530313) 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 7 ways as a sum of consecutive naturals, for example, 871 + ... + 7198.

It is an arithmetic number, because the mean of its divisors is an integer number (2146620).

Almost surely, 2^25530316 is an apocalyptic number.

It is an amenable number.

25530316 is an abundant number, since it is smaller than the sum of its proper divisors (25988564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25530316 is a wasteful number, since it uses less digits than its factorization.

25530316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8193 (or 8191 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 25530316 is about 5052.7533088406. The cubic root of 25530316 is about 294.4548622502.

Adding to 25530316 its reverse (61303552), we get a palindrome (86833868).

The spelling of 25530316 in words is "twenty-five million, five hundred thirty thousand, three hundred sixteen".