2025806 has 4 divisors (see below), whose sum is σ = 3038712. Its totient is φ = 1012902.

The previous prime is 2025791. The next prime is 2025827. The reversal of 2025806 is 6085202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 506450 + ... + 506453.

It is an arithmetic number, because the mean of its divisors is an integer number (759678).

2^2025806 is an apocalyptic number.

2025806 is a deficient number, since it is larger than the sum of its proper divisors (1012906).

2025806 is a wasteful number, since it uses less digits than its factorization.

2025806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012905.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2025806 is about 1423.3081184340. The cubic root of 2025806 is about 126.5316829201.

The spelling of 2025806 in words is "two million, twenty-five thousand, eight hundred six".