25604630 has 16 divisors (see below), whose sum is σ = 46242144. Its totient is φ = 10207680.

The previous prime is 25604599. The next prime is 25604633. The reversal of 25604630 is 3640652.

It is a self number, because there is not a number n which added to its sum of digits gives 25604630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25604633) 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, 1007 + ... + 7226.

It is an arithmetic number, because the mean of its divisors is an integer number (2890134).

Almost surely, 2^25604630 is an apocalyptic number.

25604630 is a deficient number, since it is larger than the sum of its proper divisors (20637514).

25604630 is a wasteful number, since it uses less digits than its factorization.

25604630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8551.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 25604630 is about 5060.1017776325. The cubic root of 25604630 is about 294.7402865971.

The spelling of 25604630 in words is "twenty-five million, six hundred four thousand, six hundred thirty".