75500669 has 2 divisors, whose sum is σ = 75500670. Its totient is φ = 75500668.

The previous prime is 75500627. The next prime is 75500693. The reversal of 75500669 is 96600557.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66422500 + 9078169 = 8150^2 + 3013^2 .

It is a cyclic number.

It is not a de Polignac number, because 75500669 - 2¹² = 75496573 is a prime.

It is a super-2 number, since 2×75500669² = 11400702038895122, 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 (75500069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37750334 + 37750335.

It is an arithmetic number, because the mean of its divisors is an integer number (37750335).

Almost surely, 2^75500669 is an apocalyptic number.

It is an amenable number.

75500669 is a deficient number, since it is larger than the sum of its proper divisors (1).

75500669 is an equidigital number, since it uses as much as digits as its factorization.

75500669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 75500669 is about 8689.1120950302. The cubic root of 75500669 is about 422.6526535434.

The spelling of 75500669 in words is "seventy-five million, five hundred thousand, six hundred sixty-nine".