25056641 has 4 divisors (see below), whose sum is σ = 25066800. Its totient is φ = 25046484.

The previous prime is 25056613. The next prime is 25056653. The reversal of 25056641 is 14665052.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25056641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25056601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1250 + ... + 7188.

It is an arithmetic number, because the mean of its divisors is an integer number (6266700).

Almost surely, 2^25056641 is an apocalyptic number.

It is an amenable number.

25056641 is a deficient number, since it is larger than the sum of its proper divisors (10159).

25056641 is an equidigital number, since it uses as much as digits as its factorization.

25056641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10158.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 25056641 is about 5005.6608954263. The cubic root of 25056641 is about 292.6224329786.

The spelling of 25056641 in words is "twenty-five million, fifty-six thousand, six hundred forty-one".