25530130 has 16 divisors (see below), whose sum is σ = 46287360. Its totient is φ = 10138032.

The previous prime is 25530083. The next prime is 25530133. The reversal of 25530130 is 3103552.

It is a junction number, because it is equal to n+sod(n) for n = 25530098 and 25530107.

It is not an unprimeable number, because it can be changed into a prime (25530133) by changing a digit.

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, 7794 + ... + 10573.

It is an arithmetic number, because the mean of its divisors is an integer number (2892960).

Almost surely, 2^25530130 is an apocalyptic number.

25530130 is a deficient number, since it is larger than the sum of its proper divisors (20757230).

25530130 is a wasteful number, since it uses less digits than its factorization.

25530130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18513.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 25530130 is about 5052.7349030006. The cubic root of 25530130 is about 294.4541471692.

Adding to 25530130 its reverse (3103552), we get a palindrome (28633682).

The spelling of 25530130 in words is "twenty-five million, five hundred thirty thousand, one hundred thirty".