5287581 has 24 divisors (see below), whose sum is σ = 8424416. Its totient is φ = 3175200.

The previous prime is 5287571. The next prime is 5287589. The reversal of 5287581 is 1857825.

5287581 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5287581 - 2⁶ = 5287517 is a prime.

It is a super-2 number, since 2×5287581² = 55917025663122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5287589) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4506 + ... + 5556.

Almost surely, 2^5287581 is an apocalyptic number.

It is an amenable number.

5287581 is a deficient number, since it is larger than the sum of its proper divisors (3136835).

5287581 is a wasteful number, since it uses less digits than its factorization.

5287581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113 (or 1110 counting only the distinct ones).

The product of its digits is 22400, while the sum is 36.

The square root of 5287581 is about 2299.4740703039. The cubic root of 5287581 is about 174.2150531628.

The spelling of 5287581 in words is "five million, two hundred eighty-seven thousand, five hundred eighty-one".