75427211 has 2 divisors, whose sum is σ = 75427212. Its totient is φ = 75427210.

The previous prime is 75427153. The next prime is 75427213. The reversal of 75427211 is 11272457.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75427211 - 2¹⁸ = 75165067 is a prime.

It is a Sophie Germain prime.

Together with 75427213, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75427213) 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, 37713605 + 37713606.

It is an arithmetic number, because the mean of its divisors is an integer number (37713606).

Almost surely, 2^75427211 is an apocalyptic number.

75427211 is a deficient number, since it is larger than the sum of its proper divisors (1).

75427211 is an equidigital number, since it uses as much as digits as its factorization.

75427211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3920, while the sum is 29.

The square root of 75427211 is about 8684.8840521909. The cubic root of 75427211 is about 422.5155364664.

Adding to 75427211 its reverse (11272457), we get a palindrome (86699668).

The spelling of 75427211 in words is "seventy-five million, four hundred twenty-seven thousand, two hundred eleven".