509060865 has 16 divisors (see below), whose sum is σ = 823651200. Its totient is φ = 268447872.

The previous prime is 509060843. The next prime is 509060887. The reversal of 509060865 is 568060905.

It is an interprime number because it is at equal distance from previous prime (509060843) and next prime (509060887).

It is not a de Polignac number, because 509060865 - 2¹⁸ = 508798721 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189325 + ... + 191994.

It is an arithmetic number, because the mean of its divisors is an integer number (51478200).

Almost surely, 2^509060865 is an apocalyptic number.

It is an amenable number.

509060865 is a deficient number, since it is larger than the sum of its proper divisors (314590335).

509060865 is a wasteful number, since it uses less digits than its factorization.

509060865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381416.

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 509060865 is about 22562.3772018819. The cubic root of 509060865 is about 798.4662619595.

The spelling of 509060865 in words is "five hundred nine million, sixty thousand, eight hundred sixty-five".