25303630 has 32 divisors (see below), whose sum is σ = 52306560. Its totient is φ = 8716320.

The previous prime is 25303613. The next prime is 25303637. The reversal of 25303630 is 3630352.

It is a Harshad number since it is a multiple of its sum of digits (22).

25303630 is a modest number, since divided by 3630 gives 2530 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25303637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3964 + ... + 8143.

It is an arithmetic number, because the mean of its divisors is an integer number (1634580).

Almost surely, 2^25303630 is an apocalyptic number.

25303630 is an abundant number, since it is smaller than the sum of its proper divisors (27002930).

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

25303630 is a wasteful number, since it uses less digits than its factorization.

25303630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12144.

The product of its (nonzero) digits is 1620, while the sum is 22.

The square root of 25303630 is about 5030.2713644494. The cubic root of 25303630 is about 293.5807729071.

Adding to 25303630 its reverse (3630352), we get a palindrome (28933982).

The spelling of 25303630 in words is "twenty-five million, three hundred three thousand, six hundred thirty".