2585531 has 6 divisors (see below), whose sum is σ = 2799900. Its totient is φ = 2386488.

The previous prime is 2585521. The next prime is 2585549. The reversal of 2585531 is 1355852.

It is not a de Polignac number, because 2585531 - 2⁶ = 2585467 is a prime.

It is a super-2 number, since 2×2585531² = 13369941103922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2585494 and 2585503.

It is not an unprimeable number, because it can be changed into a prime (2585521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7481 + ... + 7818.

It is an arithmetic number, because the mean of its divisors is an integer number (466650).

2^2585531 is an apocalyptic number.

2585531 is a deficient number, since it is larger than the sum of its proper divisors (214369).

2585531 is a wasteful number, since it uses less digits than its factorization.

2585531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15325 (or 15312 counting only the distinct ones).

The product of its digits is 6000, while the sum is 29.

The square root of 2585531 is about 1607.9586437468. The cubic root of 2585531 is about 137.2513367996.

The spelling of 2585531 in words is "two million, five hundred eighty-five thousand, five hundred thirty-one".