755596321 has 2 divisors, whose sum is σ = 755596322. Its totient is φ = 755596320.

The previous prime is 755596307. The next prime is 755596337. The reversal of 755596321 is 123695557.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 549386721 + 206209600 = 23439^2 + 14360^2 .

It is an emirp because it is prime and its reverse (123695557) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 755596321 - 2¹³ = 755588129 is a prime.

It is not a weakly prime, because it can be changed into another prime (755596021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 377798160 + 377798161.

It is an arithmetic number, because the mean of its divisors is an integer number (377798161).

Almost surely, 2^755596321 is an apocalyptic number.

It is an amenable number.

755596321 is a deficient number, since it is larger than the sum of its proper divisors (1).

755596321 is an equidigital number, since it uses as much as digits as its factorization.

755596321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 283500, while the sum is 43.

The square root of 755596321 is about 27488.1123578903. The cubic root of 755596321 is about 910.8145188849.

The spelling of 755596321 in words is "seven hundred fifty-five million, five hundred ninety-six thousand, three hundred twenty-one".