75332813 has 2 divisors, whose sum is σ = 75332814. Its totient is φ = 75332812.

The previous prime is 75332783. The next prime is 75332827. The reversal of 75332813 is 31823357.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69172489 + 6160324 = 8317^2 + 2482^2 .

It is a cyclic number.

It is not a de Polignac number, because 75332813 - 2²⁴ = 58555597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75332813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75332863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37666406 + 37666407.

It is an arithmetic number, because the mean of its divisors is an integer number (37666407).

Almost surely, 2^75332813 is an apocalyptic number.

It is an amenable number.

75332813 is a deficient number, since it is larger than the sum of its proper divisors (1).

75332813 is an equidigital number, since it uses as much as digits as its factorization.

75332813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 32.

The square root of 75332813 is about 8679.4477358873. The cubic root of 75332813 is about 422.3392019078.

The spelling of 75332813 in words is "seventy-five million, three hundred thirty-two thousand, eight hundred thirteen".