75500069 has 2 divisors, whose sum is σ = 75500070. Its totient is φ = 75500068.

The previous prime is 75500059. The next prime is 75500083. The reversal of 75500069 is 96000557.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75463969 + 36100 = 8687^2 + 190^2 .

It is a cyclic number.

It is not a de Polignac number, because 75500069 - 2¹⁶ = 75434533 is a prime.

It is a super-2 number, since 2×75500069² = 11400520838009522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75500059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37750034 + 37750035.

It is an arithmetic number, because the mean of its divisors is an integer number (37750035).

Almost surely, 2^75500069 is an apocalyptic number.

It is an amenable number.

75500069 is a deficient number, since it is larger than the sum of its proper divisors (1).

75500069 is an equidigital number, since it uses as much as digits as its factorization.

75500069 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 75500069 is about 8689.0775689943. The cubic root of 75500069 is about 422.6515339407.

The spelling of 75500069 in words is "seventy-five million, five hundred thousand, sixty-nine".