25408664 has 16 divisors (see below), whose sum is σ = 47822400. Its totient is φ = 12656032.

The previous prime is 25408651. The next prime is 25408673. The reversal of 25408664 is 46680452.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3752 + ... + 8055.

It is an arithmetic number, because the mean of its divisors is an integer number (2988900).

Almost surely, 2^25408664 is an apocalyptic number.

It is an amenable number.

25408664 is a deficient number, since it is larger than the sum of its proper divisors (22413736).

25408664 is a wasteful number, since it uses less digits than its factorization.

25408664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12082 (or 12078 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 25408664 is about 5040.7007449362. The cubic root of 25408664 is about 293.9864247824.

The spelling of 25408664 in words is "twenty-five million, four hundred eight thousand, six hundred sixty-four".