5720509 has 4 divisors (see below), whose sum is σ = 5725660. Its totient is φ = 5715360.

The previous prime is 5720479. The next prime is 5720531. The reversal of 5720509 is 9050275.

5720509 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2316484 + 3404025 = 1522^2 + 1845^2 .

It is a cyclic number.

It is not a de Polignac number, because 5720509 - 2¹⁹ = 5196221 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 (5720579) 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, 144 + ... + 3385.

It is an arithmetic number, because the mean of its divisors is an integer number (1431415).

Almost surely, 2^5720509 is an apocalyptic number.

It is an amenable number.

5720509 is a deficient number, since it is larger than the sum of its proper divisors (5151).

5720509 is a wasteful number, since it uses less digits than its factorization.

5720509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5150.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 5720509 is about 2391.7585580489. The cubic root of 5720509 is about 178.8455853387.

The spelling of 5720509 in words is "five million, seven hundred twenty thousand, five hundred nine".