5357509 has 4 divisors (see below), whose sum is σ = 5370316. Its totient is φ = 5344704.

The previous prime is 5357503. The next prime is 5357519. The reversal of 5357509 is 9057535.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9057535 = 5 ⋅1811507.

It can be written as a sum of positive squares in 2 ways, for example, as 1555009 + 3802500 = 1247^2 + 1950^2 .

It is a cyclic number.

It is not a de Polignac number, because 5357509 - 2⁷ = 5357381 is a prime.

It is a Duffinian number.

5357509 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5357503) 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, 5754 + ... + 6619.

It is an arithmetic number, because the mean of its divisors is an integer number (1342579).

Almost surely, 2^5357509 is an apocalyptic number.

It is an amenable number.

5357509 is a deficient number, since it is larger than the sum of its proper divisors (12807).

5357509 is a wasteful number, since it uses less digits than its factorization.

5357509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12806.

The product of its (nonzero) digits is 23625, while the sum is 34.

The square root of 5357509 is about 2314.6293439771. The cubic root of 5357509 is about 174.9796874383.

The spelling of 5357509 in words is "five million, three hundred fifty-seven thousand, five hundred nine".