25066289 has 4 divisors (see below), whose sum is σ = 25147200. Its totient is φ = 24985380.

The previous prime is 25066277. The next prime is 25066309. The reversal of 25066289 is 98266052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25066289 - 2⁴ = 25066273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25066189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39989 + ... + 40610.

It is an arithmetic number, because the mean of its divisors is an integer number (6286800).

Almost surely, 2^25066289 is an apocalyptic number.

It is an amenable number.

25066289 is a deficient number, since it is larger than the sum of its proper divisors (80911).

25066289 is an equidigital number, since it uses as much as digits as its factorization.

25066289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80910.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 25066289 is about 5006.6245115846. The cubic root of 25066289 is about 292.6599860163.

The spelling of 25066289 in words is "twenty-five million, sixty-six thousand, two hundred eighty-nine".