75525211 has 2 divisors, whose sum is σ = 75525212. Its totient is φ = 75525210.

The previous prime is 75525173. The next prime is 75525227. The reversal of 75525211 is 11252557.

It is a strong prime.

It is an emirp because it is prime and its reverse (11252557) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75525211 - 2²¹ = 73428059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75525211.

It is not a weakly prime, because it can be changed into another prime (75526211) 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, 37762605 + 37762606.

It is an arithmetic number, because the mean of its divisors is an integer number (37762606).

Almost surely, 2^75525211 is an apocalyptic number.

75525211 is a deficient number, since it is larger than the sum of its proper divisors (1).

75525211 is an equidigital number, since it uses as much as digits as its factorization.

75525211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3500, while the sum is 28.

The square root of 75525211 is about 8690.5242074342. The cubic root of 75525211 is about 422.6984439444.

Adding to 75525211 its reverse (11252557), we get a palindrome (86777768).

The spelling of 75525211 in words is "seventy-five million, five hundred twenty-five thousand, two hundred eleven".