509080331 has 4 divisors (see below), whose sum is σ = 509501232. Its totient is φ = 508659432.

The previous prime is 509080303. The next prime is 509080339. The reversal of 509080331 is 133080905.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133080905 = 5 ⋅26616181.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-509080331 is a prime.

It is a super-2 number, since 2×509080331² = 518325566822139122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 509080294 and 509080303.

It is not an unprimeable number, because it can be changed into a prime (509080339) 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, 208631 + ... + 211056.

It is an arithmetic number, because the mean of its divisors is an integer number (127375308).

Almost surely, 2^509080331 is an apocalyptic number.

509080331 is a deficient number, since it is larger than the sum of its proper divisors (420901).

509080331 is a wasteful number, since it uses less digits than its factorization.

509080331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420900.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 509080331 is about 22562.8085796073. The cubic root of 509080331 is about 798.4764393582.

The spelling of 509080331 in words is "five hundred nine million, eighty thousand, three hundred thirty-one".