2025779 has 4 divisors (see below), whose sum is σ = 2315184. Its totient is φ = 1736376.

The previous prime is 2025767. The next prime is 2025791. The reversal of 2025779 is 9775202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9775202 = 2 ⋅4887601.

It is an interprime number because it is at equal distance from previous prime (2025767) and next prime (2025791).

It is a cyclic number.

It is not a de Polignac number, because 2025779 - 2²⁰ = 977203 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2025719) 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, 144692 + ... + 144705.

It is an arithmetic number, because the mean of its divisors is an integer number (578796).

2^2025779 is an apocalyptic number.

2025779 is a deficient number, since it is larger than the sum of its proper divisors (289405).

2025779 is an equidigital number, since it uses as much as digits as its factorization.

2025779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289404.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 2025779 is about 1423.2986334568. The cubic root of 2025779 is about 126.5311207783.

The spelling of 2025779 in words is "two million, twenty-five thousand, seven hundred seventy-nine".