2066251 has 8 divisors (see below), whose sum is σ = 2352384. Its totient is φ = 1796520.

The previous prime is 2066249. The next prime is 2066257. The reversal of 2066251 is 1526602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2066251 - 2¹ = 2066249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3831 + ... + 4336.

It is an arithmetic number, because the mean of its divisors is an integer number (294048).

2^2066251 is an apocalyptic number.

2066251 is a deficient number, since it is larger than the sum of its proper divisors (286133).

2066251 is a wasteful number, since it uses less digits than its factorization.

2066251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8201.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2066251 is about 1437.4459989857. The cubic root of 2066251 is about 127.3682041925.

The spelling of 2066251 in words is "two million, sixty-six thousand, two hundred fifty-one".