5665513 has 4 divisors (see below), whose sum is σ = 6474880. Its totient is φ = 4856148.

The previous prime is 5665507. The next prime is 5665519. The reversal of 5665513 is 3155665.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3155665 = 5 ⋅631133.

It is an interprime number because it is at equal distance from previous prime (5665507) and next prime (5665519).

It is a cyclic number.

It is not a de Polignac number, because 5665513 - 2¹³ = 5657321 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (5665519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404673 + ... + 404686.

It is an arithmetic number, because the mean of its divisors is an integer number (1618720).

Almost surely, 2^5665513 is an apocalyptic number.

It is an amenable number.

5665513 is a deficient number, since it is larger than the sum of its proper divisors (809367).

5665513 is an equidigital number, since it uses as much as digits as its factorization.

5665513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809366.

The product of its digits is 13500, while the sum is 31.

The square root of 5665513 is about 2380.2338120445. The cubic root of 5665513 is about 178.2706084662.

The spelling of 5665513 in words is "five million, six hundred sixty-five thousand, five hundred thirteen".