5513909 has 4 divisors (see below), whose sum is σ = 5589516. Its totient is φ = 5438304.

The previous prime is 5513891. The next prime is 5513917. The reversal of 5513909 is 9093155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9093155 = 5 ⋅1818631.

It can be written as a sum of positive squares in 2 ways, for example, as 3411409 + 2102500 = 1847^2 + 1450^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5513909 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5513929) 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, 37694 + ... + 37839.

It is an arithmetic number, because the mean of its divisors is an integer number (1397379).

Almost surely, 2^5513909 is an apocalyptic number.

It is an amenable number.

5513909 is a deficient number, since it is larger than the sum of its proper divisors (75607).

5513909 is an equidigital number, since it uses as much as digits as its factorization.

5513909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75606.

The product of its (nonzero) digits is 6075, while the sum is 32.

The square root of 5513909 is about 2348.1714162301. The cubic root of 5513909 is about 176.6660903426. Note that the first 3 decimals are identical.

The spelling of 5513909 in words is "five million, five hundred thirteen thousand, nine hundred nine".