50640011 has 2 divisors, whose sum is σ = 50640012. Its totient is φ = 50640010.

The previous prime is 50639971. The next prime is 50640049. The reversal of 50640011 is 11004605.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50640011 - 2⁶ = 50639947 is a prime.

It is equal to p_3037220 and since 50640011 and 3037220 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (50640071) 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, 25320005 + 25320006.

It is an arithmetic number, because the mean of its divisors is an integer number (25320006).

Almost surely, 2^50640011 is an apocalyptic number.

50640011 is a deficient number, since it is larger than the sum of its proper divisors (1).

50640011 is an equidigital number, since it uses as much as digits as its factorization.

50640011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 50640011 is about 7116.1795227495. The cubic root of 50640011 is about 369.9683708049.

Adding to 50640011 its reverse (11004605), we get a palindrome (61644616).

The spelling of 50640011 in words is "fifty million, six hundred forty thousand, eleven".