2050666 has 4 divisors (see below), whose sum is σ = 3076002. Its totient is φ = 1025332.

The previous prime is 2050639. The next prime is 2050679. The reversal of 2050666 is 6660502.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6660502 = 2 ⋅3330251.

It can be written as a sum of positive squares in only one way, i.e., 1510441 + 540225 = 1229^2 + 735^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2050666.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512665 + ... + 512668.

2^2050666 is an apocalyptic number.

2050666 is a deficient number, since it is larger than the sum of its proper divisors (1025336).

2050666 is a wasteful number, since it uses less digits than its factorization.

2050666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025335.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 2050666 is about 1432.0146647294. The cubic root of 2050666 is about 127.0471645765.

The spelling of 2050666 in words is "two million, fifty thousand, six hundred sixty-six".