2025813 has 4 divisors (see below), whose sum is σ = 2701088. Its totient is φ = 1350540.

The previous prime is 2025791. The next prime is 2025827. The reversal of 2025813 is 3185202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2025813 - 2⁸ = 2025557 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2025813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2025833) 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 3 ways as a sum of consecutive naturals, for example, 337633 + ... + 337638.

It is an arithmetic number, because the mean of its divisors is an integer number (675272).

2^2025813 is an apocalyptic number.

It is an amenable number.

2025813 is a deficient number, since it is larger than the sum of its proper divisors (675275).

2025813 is an equidigital number, since it uses as much as digits as its factorization.

2025813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675274.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2025813 is about 1423.3105774918. The cubic root of 2025813 is about 126.5318286597.

The spelling of 2025813 in words is "two million, twenty-five thousand, eight hundred thirteen".