25213630 has 16 divisors (see below), whose sum is σ = 48875904. Its totient is φ = 9309600.

The previous prime is 25213621. The next prime is 25213649. The reversal of 25213630 is 3631252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96846 + ... + 97105.

It is an arithmetic number, because the mean of its divisors is an integer number (3054744).

Almost surely, 2^25213630 is an apocalyptic number.

25213630 is a deficient number, since it is larger than the sum of its proper divisors (23662274).

25213630 is a wasteful number, since it uses less digits than its factorization.

25213630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193971.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 25213630 is about 5021.3175561799. The cubic root of 25213630 is about 293.2322898650.

Adding to 25213630 its reverse (3631252), we get a palindrome (28844882).

The spelling of 25213630 in words is "twenty-five million, two hundred thirteen thousand, six hundred thirty".