75550753 has 2 divisors, whose sum is σ = 75550754. Its totient is φ = 75550752.

The previous prime is 75550733. The next prime is 75550789. The reversal of 75550753 is 35705557.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63489024 + 12061729 = 7968^2 + 3473^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75550753 is a prime.

It is a super-3 number, since 3×75550753³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (75550733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37775376 + 37775377.

It is an arithmetic number, because the mean of its divisors is an integer number (37775377).

Almost surely, 2^75550753 is an apocalyptic number.

It is an amenable number.

75550753 is a deficient number, since it is larger than the sum of its proper divisors (1).

75550753 is an equidigital number, since it uses as much as digits as its factorization.

75550753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91875, while the sum is 37.

The square root of 75550753 is about 8691.9936148159. The cubic root of 75550753 is about 422.7460896097.

The spelling of 75550753 in words is "seventy-five million, five hundred fifty thousand, seven hundred fifty-three".