25689233 has 2 divisors, whose sum is σ = 25689234. Its totient is φ = 25689232.

The previous prime is 25689221. The next prime is 25689253. The reversal of 25689233 is 33298652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19298449 + 6390784 = 4393^2 + 2528^2 .

It is a cyclic number.

It is not a de Polignac number, because 25689233 - 2⁴ = 25689217 is a prime.

It is a plaindrome in base 11.

It is not a weakly prime, because it can be changed into another prime (25689253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12844616 + 12844617.

It is an arithmetic number, because the mean of its divisors is an integer number (12844617).

Almost surely, 2^25689233 is an apocalyptic number.

It is an amenable number.

25689233 is a deficient number, since it is larger than the sum of its proper divisors (1).

25689233 is an equidigital number, since it uses as much as digits as its factorization.

25689233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 38.

The square root of 25689233 is about 5068.4546954669. The cubic root of 25689233 is about 295.0645573546.

The spelling of 25689233 in words is "twenty-five million, six hundred eighty-nine thousand, two hundred thirty-three".