25505066 has 16 divisors (see below), whose sum is σ = 40906944. Its totient is φ = 11884224.

The previous prime is 25505059. The next prime is 25505093. The reversal of 25505066 is 66050552.

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 7 ways as a sum of consecutive naturals, for example, 140 + ... + 7143.

It is an arithmetic number, because the mean of its divisors is an integer number (2556684).

Almost surely, 2^25505066 is an apocalyptic number.

25505066 is a deficient number, since it is larger than the sum of its proper divisors (15401878).

25505066 is a wasteful number, since it uses less digits than its factorization.

25505066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7405.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 25505066 is about 5050.2540530156. The cubic root of 25505066 is about 294.3577562876.

The spelling of 25505066 in words is "twenty-five million, five hundred five thousand, sixty-six".