75061717 has 2 divisors, whose sum is σ = 75061718. Its totient is φ = 75061716.

The previous prime is 75061711. The next prime is 75061729. The reversal of 75061717 is 71716057.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65383396 + 9678321 = 8086^2 + 3111^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75061717 is a prime.

It is a super-2 number, since 2×75061717² = 11268522717976178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75061711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37530858 + 37530859.

It is an arithmetic number, because the mean of its divisors is an integer number (37530859).

Almost surely, 2^75061717 is an apocalyptic number.

It is an amenable number.

75061717 is a deficient number, since it is larger than the sum of its proper divisors (1).

75061717 is an equidigital number, since it uses as much as digits as its factorization.

75061717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10290, while the sum is 34.

The square root of 75061717 is about 8663.8165377621. The cubic root of 75061717 is about 421.8319767886.

The spelling of 75061717 in words is "seventy-five million, sixty-one thousand, seven hundred seventeen".