5315509 has 4 divisors (see below), whose sum is σ = 5628204. Its totient is φ = 5002816.

The previous prime is 5315491. The next prime is 5315533. The reversal of 5315509 is 9055135.

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 4937284 + 378225 = 2222^2 + 615^2 .

It is a cyclic number.

It is not a de Polignac number, because 5315509 - 2¹⁹ = 4791221 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 (5315209) 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, 156322 + ... + 156355.

It is an arithmetic number, because the mean of its divisors is an integer number (1407051).

Almost surely, 2^5315509 is an apocalyptic number.

It is an amenable number.

5315509 is a deficient number, since it is larger than the sum of its proper divisors (312695).

5315509 is a wasteful number, since it uses less digits than its factorization.

5315509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312694.

The product of its (nonzero) digits is 3375, while the sum is 28.

The square root of 5315509 is about 2305.5387656684. The cubic root of 5315509 is about 174.5212383462.

The spelling of 5315509 in words is "five million, three hundred fifteen thousand, five hundred nine".