25663226 has 8 divisors (see below), whose sum is σ = 39736704. Its totient is φ = 12417660.

The previous prime is 25663199. The next prime is 25663241. The reversal of 25663226 is 62236652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 25663192 and 25663201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206900 + ... + 207023.

It is an arithmetic number, because the mean of its divisors is an integer number (4967088).

Almost surely, 2^25663226 is an apocalyptic number.

25663226 is a deficient number, since it is larger than the sum of its proper divisors (14073478).

25663226 is a wasteful number, since it uses less digits than its factorization.

25663226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413956.

The product of its digits is 25920, while the sum is 32.

The square root of 25663226 is about 5065.8884709397. Note that the first 3 decimals coincide. The cubic root of 25663226 is about 294.9649522664.

Adding to 25663226 its reverse (62236652), we get a palindrome (87899878).

The spelling of 25663226 in words is "twenty-five million, six hundred sixty-three thousand, two hundred twenty-six".