2565039 has 8 divisors (see below), whose sum is σ = 3434112. Its totient is φ = 1703000.

The previous prime is 2565023. The next prime is 2565047. The reversal of 2565039 is 9305652.

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

It is a cyclic number.

It is not a de Polignac number, because 2565039 - 2⁴ = 2565023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2564997 and 2565015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565049) 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, 837 + ... + 2414.

It is an arithmetic number, because the mean of its divisors is an integer number (429264).

2^2565039 is an apocalyptic number.

2565039 is a deficient number, since it is larger than the sum of its proper divisors (869073).

2565039 is a wasteful number, since it uses less digits than its factorization.

2565039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3517.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 2565039 is about 1601.5739133740. The cubic root of 2565039 is about 136.8877728328.

The spelling of 2565039 in words is "two million, five hundred sixty-five thousand, thirty-nine".