506623811 has 2 divisors, whose sum is σ = 506623812. Its totient is φ = 506623810.

The previous prime is 506623781. The next prime is 506623841. The reversal of 506623811 is 118326605.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (506623781) and next prime (506623841).

It is a cyclic number.

It is not a de Polignac number, because 506623811 - 2¹⁴ = 506607427 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (506623841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253311905 + 253311906.

It is an arithmetic number, because the mean of its divisors is an integer number (253311906).

Almost surely, 2^506623811 is an apocalyptic number.

506623811 is a deficient number, since it is larger than the sum of its proper divisors (1).

506623811 is an equidigital number, since it uses as much as digits as its factorization.

506623811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 506623811 is about 22508.3053782376. The cubic root of 506623811 is about 797.1900432974.

The spelling of 506623811 in words is "five hundred six million, six hundred twenty-three thousand, eight hundred eleven".