511940711 has 2 divisors, whose sum is σ = 511940712. Its totient is φ = 511940710.

The previous prime is 511940677. The next prime is 511940729. The reversal of 511940711 is 117049115.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 511940711 - 2¹⁸ = 511678567 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (511940791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255970355 + 255970356.

It is an arithmetic number, because the mean of its divisors is an integer number (255970356).

Almost surely, 2^511940711 is an apocalyptic number.

511940711 is a deficient number, since it is larger than the sum of its proper divisors (1).

511940711 is an equidigital number, since it uses as much as digits as its factorization.

511940711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 29.

The square root of 511940711 is about 22626.1068458540. The cubic root of 511940711 is about 799.9691191205.

Adding to 511940711 its reverse (117049115), we get a palindrome (628989826).

The spelling of 511940711 in words is "five hundred eleven million, nine hundred forty thousand, seven hundred eleven".