511002061 has 2 divisors, whose sum is σ = 511002062. Its totient is φ = 511002060.

The previous prime is 511002013. The next prime is 511002073. The reversal of 511002061 is 160200115.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 508502500 + 2499561 = 22550^2 + 1581^2 .

It is a cyclic number.

It is not a de Polignac number, because 511002061 - 2⁹ = 511001549 is a prime.

It is a super-3 number, since 3×511002061³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (511002161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255501030 + 255501031.

It is an arithmetic number, because the mean of its divisors is an integer number (255501031).

Almost surely, 2^511002061 is an apocalyptic number.

It is an amenable number.

511002061 is a deficient number, since it is larger than the sum of its proper divisors (1).

511002061 is an equidigital number, since it uses as much as digits as its factorization.

511002061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 511002061 is about 22605.3546975047. The cubic root of 511002061 is about 799.4799020501.

Adding to 511002061 its reverse (160200115), we get a palindrome (671202176).

The spelling of 511002061 in words is "five hundred eleven million, two thousand, sixty-one".