5180509 has 4 divisors (see below), whose sum is σ = 5207004. Its totient is φ = 5154016.

The previous prime is 5180501. The next prime is 5180537. The reversal of 5180509 is 9050815.

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 4088484 + 1092025 = 2022^2 + 1045^2 .

It is a cyclic number.

It is not a de Polignac number, because 5180509 - 2³ = 5180501 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 (5180501) 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, 12952 + ... + 13345.

It is an arithmetic number, because the mean of its divisors is an integer number (1301751).

Almost surely, 2^5180509 is an apocalyptic number.

It is an amenable number.

5180509 is a deficient number, since it is larger than the sum of its proper divisors (26495).

5180509 is a wasteful number, since it uses less digits than its factorization.

5180509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26494.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 5180509 is about 2276.0731534817. The cubic root of 5180509 is about 173.0310902280.

The spelling of 5180509 in words is "five million, one hundred eighty thousand, five hundred nine".