25505668 has 12 divisors (see below), whose sum is σ = 44684752. Its totient is φ = 12738600.

The previous prime is 25505647. The next prime is 25505677. The reversal of 25505668 is 86650552.

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, 1171 + ... + 7237.

Almost surely, 2^25505668 is an apocalyptic number.

It is an amenable number.

25505668 is a deficient number, since it is larger than the sum of its proper divisors (19179084).

25505668 is a wasteful number, since it uses less digits than its factorization.

25505668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7122 (or 7120 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 25505668 is about 5050.3136536259. The cubic root of 25505668 is about 294.3600721932.

The spelling of 25505668 in words is "twenty-five million, five hundred five thousand, six hundred sixty-eight".