509258805505 has 8 divisors (see below), whose sum is σ = 625322440512. Its totient is φ = 397932461808.

The previous prime is 509258805481. The next prime is 509258805527. The reversal of 509258805505 is 505508852905.

It is a happy number.

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 509258805505 - 2¹⁷ = 509258674433 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1184322589 + ... + 1184323018.

It is an arithmetic number, because the mean of its divisors is an integer number (78165305064).

Almost surely, 2^509258805505 is an apocalyptic number.

It is an amenable number.

509258805505 is a deficient number, since it is larger than the sum of its proper divisors (116063635007).

509258805505 is a wasteful number, since it uses less digits than its factorization.

509258805505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2368645655.

The product of its (nonzero) digits is 3600000, while the sum is 52.

The spelling of 509258805505 in words is "five hundred nine billion, two hundred fifty-eight million, eight hundred five thousand, five hundred five".