509269489 has 3 divisors (see below), whose sum is σ = 509292057. Its totient is φ = 509246922.

The previous prime is 509269469. The next prime is 509269531. The reversal of 509269489 is 984962905.

The square root of 509269489 is 22567.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 509269489 - 2¹¹ = 509267441 is a prime.

It is a super-2 number, since 2×509269489² = 518710824852642242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (509269429) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 11284 + ... + 33850.

It is an arithmetic number, because the mean of its divisors is an integer number (169764019).

Almost surely, 2^509269489 is an apocalyptic number.

509269489 is the 22567-th square number.

509269489 is the 11284-th centered octagonal number.

It is an amenable number.

509269489 is a deficient number, since it is larger than the sum of its proper divisors (22568).

509269489 is an frugal number, since it uses more digits than its factorization.

509269489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45134 (or 22567 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 52.

The cubic root of 509269489 is about 798.5753232304.

The spelling of 509269489 in words is "five hundred nine million, two hundred sixty-nine thousand, four hundred eighty-nine".