511089 has 4 divisors (see below), whose sum is σ = 681456. Its totient is φ = 340724.

The previous prime is 511087. The next prime is 511109. The reversal of 511089 is 980115.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 511089 - 2¹ = 511087 is a prime.

It is a super-2 number, since 2×511089² = 522423931842, which contains 22 as substring.

It is a D-number.

It is a Curzon number.

511089 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (511087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85179 + ... + 85184.

It is an arithmetic number, because the mean of its divisors is an integer number (170364).

2⁵¹¹⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

511089 is a deficient number, since it is larger than the sum of its proper divisors (170367).

511089 is a wasteful number, since it uses less digits than its factorization.

511089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170366.

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 511089 is about 714.9048887789. The cubic root of 511089 is about 79.9525239142.

The spelling of 511089 in words is "five hundred eleven thousand, eighty-nine".