5906581 has 4 divisors (see below), whose sum is σ = 5965164. Its totient is φ = 5848000.

The previous prime is 5906557. The next prime is 5906603. The reversal of 5906581 is 1856095.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5712100 + 194481 = 2390^2 + 441^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5906581 is a prime.

It is a super-2 number, since 2×5906581² = 69775398219122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5906881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29140 + ... + 29341.

It is an arithmetic number, because the mean of its divisors is an integer number (1491291).

Almost surely, 2^5906581 is an apocalyptic number.

It is an amenable number.

5906581 is a deficient number, since it is larger than the sum of its proper divisors (58583).

5906581 is a wasteful number, since it uses less digits than its factorization.

5906581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58582.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 5906581 is about 2430.3458601606. The cubic root of 5906581 is about 180.7640464996.

The spelling of 5906581 in words is "five million, nine hundred six thousand, five hundred eighty-one".