16650825 has 12 divisors (see below), whose sum is σ = 27529488. Its totient is φ = 8880400.

The previous prime is 16650817. The next prime is 16650839. The reversal of 16650825 is 52805661.

16650825 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16650825 - 2³ = 16650817 is a prime.

It is a nialpdrome in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110931 + ... + 111080.

It is an arithmetic number, because the mean of its divisors is an integer number (2294124).

Almost surely, 2^16650825 is an apocalyptic number.

16650825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16650825 is a deficient number, since it is larger than the sum of its proper divisors (10878663).

16650825 is a wasteful number, since it uses less digits than its factorization.

16650825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222024 (or 222019 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 16650825 is about 4080.5422433789. The cubic root of 16650825 is about 255.3555210188.

The spelling of 16650825 in words is "sixteen million, six hundred fifty thousand, eight hundred twenty-five".