5581513 has 4 divisors (see below), whose sum is σ = 6378880. Its totient is φ = 4784148.

The previous prime is 5581493. The next prime is 5581531. The reversal of 5581513 is 3151855.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5581513 - 2⁹ = 5581001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5581553) 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, 398673 + ... + 398686.

It is an arithmetic number, because the mean of its divisors is an integer number (1594720).

Almost surely, 2^5581513 is an apocalyptic number.

It is an amenable number.

5581513 is a deficient number, since it is larger than the sum of its proper divisors (797367).

5581513 is an equidigital number, since it uses as much as digits as its factorization.

5581513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797366.

The product of its digits is 3000, while the sum is 28.

The square root of 5581513 is about 2362.5225924846. The cubic root of 5581513 is about 177.3851720453.

The spelling of 5581513 in words is "five million, five hundred eighty-one thousand, five hundred thirteen".