25130512 has 20 divisors (see below), whose sum is σ = 53117136. Its totient is φ = 11422880.

The previous prime is 25130509. The next prime is 25130527. The reversal of 25130512 is 21503152.

It is a self number, because there is not a number n which added to its sum of digits gives 25130512.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71218 + ... + 71569.

Almost surely, 2^25130512 is an apocalyptic number.

25130512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25130512 is an abundant number, since it is smaller than the sum of its proper divisors (27986624).

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

25130512 is a wasteful number, since it uses less digits than its factorization.

25130512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142806 (or 142800 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 25130512 is about 5013.0342109345. The cubic root of 25130512 is about 292.9097168127.

Adding to 25130512 its reverse (21503152), we get a palindrome (46633664).

The spelling of 25130512 in words is "twenty-five million, one hundred thirty thousand, five hundred twelve".