25893649 has 8 divisors (see below), whose sum is σ = 26943488. Its totient is φ = 24857280.

The previous prime is 25893643. The next prime is 25893661. The reversal of 25893649 is 94639852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25893649 - 2³ = 25893641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25893599 and 25893608.

It is not an unprimeable number, because it can be changed into a prime (25893641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 649 + ... + 7225.

It is an arithmetic number, because the mean of its divisors is an integer number (3367936).

Almost surely, 2^25893649 is an apocalyptic number.

It is an amenable number.

25893649 is a deficient number, since it is larger than the sum of its proper divisors (1049839).

25893649 is a wasteful number, since it uses less digits than its factorization.

25893649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6735.

The product of its digits is 466560, while the sum is 46.

The square root of 25893649 is about 5088.5802538626. The cubic root of 25893649 is about 295.8451260965.

The spelling of 25893649 in words is "twenty-five million, eight hundred ninety-three thousand, six hundred forty-nine".