25130812 has 24 divisors (see below), whose sum is σ = 52448256. Its totient is φ = 10301808.

The previous prime is 25130803. The next prime is 25130813. The reversal of 25130812 is 21803152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25130813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18868 + ... + 20155.

It is an arithmetic number, because the mean of its divisors is an integer number (2185344).

Almost surely, 2^25130812 is an apocalyptic number.

It is an amenable number.

25130812 is an abundant number, since it is smaller than the sum of its proper divisors (27317444).

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

25130812 is a wasteful number, since it uses less digits than its factorization.

25130812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39057 (or 39055 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 25130812 is about 5013.0641328433. The cubic root of 25130812 is about 292.9108823622.

Adding to 25130812 its reverse (21803152), we get a palindrome (46933964).

The spelling of 25130812 in words is "twenty-five million, one hundred thirty thousand, eight hundred twelve".