25163830 has 16 divisors (see below), whose sum is σ = 45916704. Its totient is φ = 9927360.

The previous prime is 25163821. The next prime is 25163833. The reversal of 25163830 is 3836152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25163833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16506 + ... + 17965.

It is an arithmetic number, because the mean of its divisors is an integer number (2869794).

Almost surely, 2^25163830 is an apocalyptic number.

25163830 is a deficient number, since it is larger than the sum of its proper divisors (20752874).

25163830 is a wasteful number, since it uses less digits than its factorization.

25163830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34551.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 25163830 is about 5016.3562473174. The cubic root of 25163830 is about 293.0391060882.

Adding to 25163830 its reverse (3836152), we get a palindrome (28999982).

The spelling of 25163830 in words is "twenty-five million, one hundred sixty-three thousand, eight hundred thirty".