25509130 has 16 divisors (see below), whose sum is σ = 46103904. Its totient is φ = 10162000.

The previous prime is 25509119. The next prime is 25509149. The reversal of 25509130 is 3190552.

It is a junction number, because it is equal to n+sod(n) for n = 25509095 and 25509104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2572 + ... + 7591.

It is an arithmetic number, because the mean of its divisors is an integer number (2881494).

Almost surely, 2^25509130 is an apocalyptic number.

25509130 is a deficient number, since it is larger than the sum of its proper divisors (20594774).

25509130 is a wasteful number, since it uses less digits than its factorization.

25509130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10421.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 25509130 is about 5050.6563929850. The cubic root of 25509130 is about 294.3733898665.

Adding to 25509130 its reverse (3190552), we get a palindrome (28699682).

The spelling of 25509130 in words is "twenty-five million, five hundred nine thousand, one hundred thirty".