511061 has 2 divisors, whose sum is σ = 511062.
Its totient is φ = 511060.
The previous prime is 511057. The next prime is 511087. The reversal of 511061 is 160115.
Adding to 511061 its reverse (160115), we get a palindrome (671176).
511061 = 5052 + 5062.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 256036 + 255025 = 506^2 + 505^2
It is a cyclic number.
It is not a de Polignac number, because 511061 - 22 = 511057 is a prime.
It is a super-2 number, since 2×5110612 = 522366691442, which contains 22 as substring.
It is a Sophie Germain prime.
It is a Chen prime.
It is a Curzon number.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (511001) 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 as a sum of consecutive naturals, namely, 255530 + 255531.
It is an arithmetic number, because the mean of its divisors is an integer number (255531).
2511061 is an apocalyptic number.
511061 is the 506-th centered square number.
It is an amenable number.
511061 is a deficient number, since it is larger than the sum of its proper divisors (1).
511061 is an equidigital number, since it uses as much as digits as its factorization.
511061 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 30, while the sum is 14.
The square root of 511061 is about 714.8853054861.
The cubic root of 511061 is about 79.9510638217.
The spelling of 511061 in words is "five hundred eleven thousand, sixty-one".