75008513 has 2 divisors, whose sum is σ = 75008514. Its totient is φ = 75008512.

The previous prime is 75008501. The next prime is 75008567. The reversal of 75008513 is 31580057.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71707024 + 3301489 = 8468^2 + 1817^2 .

It is an emirp because it is prime and its reverse (31580057) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75008513 is a prime.

It is not a weakly prime, because it can be changed into another prime (75008113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37504256 + 37504257.

It is an arithmetic number, because the mean of its divisors is an integer number (37504257).

Almost surely, 2^75008513 is an apocalyptic number.

It is an amenable number.

75008513 is a deficient number, since it is larger than the sum of its proper divisors (1).

75008513 is an equidigital number, since it uses as much as digits as its factorization.

75008513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 75008513 is about 8660.7455221823. The cubic root of 75008513 is about 421.7322879189.

The spelling of 75008513 in words is "seventy-five million, eight thousand, five hundred thirteen".