511087 has 2 divisors, whose sum is σ = 511088. Its totient is φ = 511086.

The previous prime is 511061. The next prime is 511109. The reversal of 511087 is 780115.

It is an a-pointer prime, because the next prime (511109) can be obtained adding 511087 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-511087 is a prime.

It is a super-2 number, since 2×511087² = 522419843138, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (511057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255543 + 255544.

It is an arithmetic number, because the mean of its divisors is an integer number (255544).

2⁵¹¹⁰⁸⁷ is an apocalyptic number.

511087 is a deficient number, since it is larger than the sum of its proper divisors (1).

511087 is an equidigital number, since it uses as much as digits as its factorization.

511087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 22.

The square root of 511087 is about 714.9034899901. The cubic root of 511087 is about 79.9524196236.

It can be divided in two parts, 51108 and 7, that added together give a palindrome (51115).

The spelling of 511087 in words is "five hundred eleven thousand, eighty-seven".