509662081 has 8 divisors (see below), whose sum is σ = 516245184. Its totient is φ = 503089680.

The previous prime is 509662063. The next prime is 509662117. The reversal of 509662081 is 180266905.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 509662081 - 2⁷ = 509661953 is a prime.

It is a super-2 number, since 2×509662081² = 519510873618501122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 509662081.

It is not an unprimeable number, because it can be changed into a prime (509662781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142740 + ... + 146266.

It is an arithmetic number, because the mean of its divisors is an integer number (64530648).

Almost surely, 2^509662081 is an apocalyptic number.

It is an amenable number.

509662081 is a deficient number, since it is larger than the sum of its proper divisors (6583103).

509662081 is a wasteful number, since it uses less digits than its factorization.

509662081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5351.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 509662081 is about 22575.6966891390. The cubic root of 509662081 is about 798.7804757496.

The spelling of 509662081 in words is "five hundred nine million, six hundred sixty-two thousand, eighty-one".