75268513 has 2 divisors, whose sum is σ = 75268514. Its totient is φ = 75268512.

The previous prime is 75268511. The next prime is 75268559. The reversal of 75268513 is 31586257.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72199009 + 3069504 = 8497^2 + 1752^2 .

It is an emirp because it is prime and its reverse (31586257) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75268513 - 2¹ = 75268511 is a prime.

Together with 75268511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (75268511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37634256 + 37634257.

It is an arithmetic number, because the mean of its divisors is an integer number (37634257).

Almost surely, 2^75268513 is an apocalyptic number.

It is an amenable number.

75268513 is a deficient number, since it is larger than the sum of its proper divisors (1).

75268513 is an equidigital number, since it uses as much as digits as its factorization.

75268513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 37.

The square root of 75268513 is about 8675.7427924069. The cubic root of 75268513 is about 422.2190057645.

The spelling of 75268513 in words is "seventy-five million, two hundred sixty-eight thousand, five hundred thirteen".