25466641 has 4 divisors (see below), whose sum is σ = 25773552. Its totient is φ = 25159732.

The previous prime is 25466587. The next prime is 25466653. The reversal of 25466641 is 14666452.

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 25466641 - 2⁷ = 25466513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25466597 and 25466606.

It is not an unprimeable number, because it can be changed into a prime (25466041) 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, 153331 + ... + 153496.

It is an arithmetic number, because the mean of its divisors is an integer number (6443388).

Almost surely, 2^25466641 is an apocalyptic number.

It is an amenable number.

25466641 is a deficient number, since it is larger than the sum of its proper divisors (306911).

25466641 is an equidigital number, since it uses as much as digits as its factorization.

25466641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306910.

The product of its digits is 34560, while the sum is 34.

The square root of 25466641 is about 5046.4483550315. The cubic root of 25466641 is about 294.2098591124.

The spelling of 25466641 in words is "twenty-five million, four hundred sixty-six thousand, six hundred forty-one".