25066641 has 4 divisors (see below), whose sum is σ = 33422192. Its totient is φ = 16711092.

The previous prime is 25066633. The next prime is 25066663. The reversal of 25066641 is 14666052.

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 not a de Polignac number, because 25066641 - 2³ = 25066633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25066599 and 25066608.

It is not an unprimeable number, because it can be changed into a prime (25066441) 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, 4177771 + ... + 4177776.

It is an arithmetic number, because the mean of its divisors is an integer number (8355548).

Almost surely, 2^25066641 is an apocalyptic number.

It is an amenable number.

25066641 is a deficient number, since it is larger than the sum of its proper divisors (8355551).

25066641 is an equidigital number, since it uses as much as digits as its factorization.

25066641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8355550.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 25066641 is about 5006.6596648864. The cubic root of 25066641 is about 292.6613559284.

The spelling of 25066641 in words is "twenty-five million, sixty-six thousand, six hundred forty-one".