25664233 has 8 divisors (see below), whose sum is σ = 29828160. Its totient is φ = 21624720.

The previous prime is 25664189. The next prime is 25664239. The reversal of 25664233 is 33246652.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 25664233 - 2⁹ = 25663721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25664195 and 25664204.

It is not an unprimeable number, because it can be changed into a prime (25664239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30658 + ... + 31483.

It is an arithmetic number, because the mean of its divisors is an integer number (3728520).

Almost surely, 2^25664233 is an apocalyptic number.

It is an amenable number.

25664233 is a deficient number, since it is larger than the sum of its proper divisors (4163927).

25664233 is an equidigital number, since it uses as much as digits as its factorization.

25664233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62207.

The product of its digits is 25920, while the sum is 31.

The square root of 25664233 is about 5065.9878602302. The cubic root of 25664233 is about 294.9688102618.

The spelling of 25664233 in words is "twenty-five million, six hundred sixty-four thousand, two hundred thirty-three".