5286581 has 4 divisors (see below), whose sum is σ = 5415564. Its totient is φ = 5157600.

The previous prime is 5286571. The next prime is 5286583. The reversal of 5286581 is 1856825.

It is a happy number.

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 2430481 + 2856100 = 1559^2 + 1690^2 .

It is a cyclic number.

It is not a de Polignac number, because 5286581 - 2⁶ = 5286517 is a prime.

It is a super-2 number, since 2×5286581² = 55895877339122, 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 (5286583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64430 + ... + 64511.

It is an arithmetic number, because the mean of its divisors is an integer number (1353891).

Almost surely, 2^5286581 is an apocalyptic number.

It is an amenable number.

5286581 is a deficient number, since it is larger than the sum of its proper divisors (128983).

5286581 is a wasteful number, since it uses less digits than its factorization.

5286581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128982.

The product of its digits is 19200, while the sum is 35.

The square root of 5286581 is about 2299.2566189967. The cubic root of 5286581 is about 174.2040698141.

The spelling of 5286581 in words is "five million, two hundred eighty-six thousand, five hundred eighty-one".