505889269 has 8 divisors (see below), whose sum is σ = 533618240. Its totient is φ = 478270656.

The previous prime is 505889191. The next prime is 505889273. The reversal of 505889269 is 962988505.

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 505889269 - 2²¹ = 503792117 is a prime.

It is a super-2 number, since 2×505889269² = 511847904978708722, 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 (505889299) 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, 18084 + ... + 36589.

It is an arithmetic number, because the mean of its divisors is an integer number (66702280).

Almost surely, 2^505889269 is an apocalyptic number.

It is an amenable number.

505889269 is a deficient number, since it is larger than the sum of its proper divisors (27728971).

505889269 is a wasteful number, since it uses less digits than its factorization.

505889269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55179.

The product of its (nonzero) digits is 1555200, while the sum is 52.

The square root of 505889269 is about 22491.9823270427. The cubic root of 505889269 is about 796.8045812212.

The spelling of 505889269 in words is "five hundred five million, eight hundred eighty-nine thousand, two hundred sixty-nine".