75530219 has 2 divisors, whose sum is σ = 75530220. Its totient is φ = 75530218.

The previous prime is 75530179. The next prime is 75530227. The reversal of 75530219 is 91203557.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75530219 - 2²⁰ = 74481643 is a prime.

It is a super-2 number, since 2×75530219² = 11409627964375922, which contains 22 as substring.

It is a Sophie Germain prime.

It is equal to p_4423649 and since 75530219 and 4423649 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 (75500219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37765109 + 37765110.

It is an arithmetic number, because the mean of its divisors is an integer number (37765110).

Almost surely, 2^75530219 is an apocalyptic number.

75530219 is a deficient number, since it is larger than the sum of its proper divisors (1).

75530219 is an equidigital number, since it uses as much as digits as its factorization.

75530219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 75530219 is about 8690.8123325728. The cubic root of 75530219 is about 422.7077866393.

The spelling of 75530219 in words is "seventy-five million, five hundred thirty thousand, two hundred nineteen".