505999469 has 8 divisors (see below), whose sum is σ = 537611040. Its totient is φ = 474885936.

The previous prime is 505999397. The next prime is 505999493. The reversal of 505999469 is 964999505.

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 505999469 - 2⁸ = 505999213 is a prime.

It is a super-2 number, since 2×505999469² = 512070925256563922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505999069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122414 + ... + 126479.

It is an arithmetic number, because the mean of its divisors is an integer number (67201380).

Almost surely, 2^505999469 is an apocalyptic number.

It is an amenable number.

505999469 is a deficient number, since it is larger than the sum of its proper divisors (31611571).

505999469 is a wasteful number, since it uses less digits than its factorization.

505999469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249019.

The product of its (nonzero) digits is 3936600, while the sum is 56.

The square root of 505999469 is about 22494.4319554862. The cubic root of 505999469 is about 796.8624341251.

The spelling of 505999469 in words is "five hundred five million, nine hundred ninety-nine thousand, four hundred sixty-nine".