1966025 has 12 divisors (see below), whose sum is σ = 2566800. Its totient is φ = 1489680.

The previous prime is 1966009. The next prime is 1966031. The reversal of 1966025 is 5206691.

It is not a de Polignac number, because 1966025 - 2⁴ = 1966009 is a prime.

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, 1595 + ... + 2544.

It is an arithmetic number, because the mean of its divisors is an integer number (213900).

2^1966025 is an apocalyptic number.

It is an amenable number.

1966025 is a deficient number, since it is larger than the sum of its proper divisors (600775).

1966025 is a wasteful number, since it uses less digits than its factorization.

1966025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4168 (or 4163 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 1966025 is about 1402.1501346147. The cubic root of 1966025 is about 125.2745963331.

The spelling of 1966025 in words is "one million, nine hundred sixty-six thousand, twenty-five".